Sky blue
#51B2CA
#51B2CA is a sky blue with medium intensity, at step 400 of its 50–950 scale. Dark text on it has a contrast of 7.7:1. On white it reaches only 2.5:1, so use a darker shade for text.
#51B2CA shades and tints
Eleven steps from 50 to 950 with #51B2CA kept exactly at step 400. Lightness steps are even to the eye, and intensity tapers toward the lightest and darkest steps.
- 50 EAFAFF
- 100 CAF3FF
- 200 9BE7FB
- 300 79CEE4
- 400 51B2CA
- 500 3096AD
- 600 007A91
- 700 006072
- 800 004856
- 900 00313C
- 950 001C23
Tailwind CSS v4 theme
@theme { --color-sky-blue-50: #eafaff; --color-sky-blue-100: #caf3ff; --color-sky-blue-200: #9be7fb; --color-sky-blue-300: #79cee4; --color-sky-blue-400: #51b2ca; --color-sky-blue-500: #3096ad; --color-sky-blue-600: #007a91; --color-sky-blue-700: #006072; --color-sky-blue-800: #004856; --color-sky-blue-900: #00313c; --color-sky-blue-950: #001c23;}Is #51B2CA readable?
Contrast for text on #51B2CA and for #51B2CA used as text. WCAG 2.2 asks for 4.5:1 for body text and 3:1 for large text; APCA Lc rates how comfortable the text is to read.
- AaThe quick brown foxCheck in contrast tool
White text on it
Fail · 2.5APCA Lc 53 · Large text and headings
- AaThe quick brown foxCheck in contrast tool
Dark text on it
AAA · 7.7APCA Lc 55 · Large text and headings
- AaThe quick brown foxClosest readable: #0E8298 · 4.5:1 Check in contrast tool
As text on white
Fail · 2.5APCA Lc 48 · Large text and headings
- AaThe quick brown foxCheck in contrast tool
As text on a dark background
AAA · 7.7APCA Lc 54 · Large text and headings
Color palettes with #51B2CA
Six palettes built around #51B2CA, each starting from the exact color. Open one in the palette tool to adjust it or get more options.
- Analogous#51B2CA · #5897DD · #00CAB5 · #E5E9FF · #17282C
- Complementary#51B2CA · #D57A6C · #FE976A · #BAEEFF · #21282A
- Split complementary#51B2CA · #D28899 · #E47E00 · #B0E9F5 · #253136
- Triadic#51B2CA · #B06EA0 · #D7AF00 · #C9F1FF · #26353B
- Tetradic#51B2CA · #BD84E5 · #FF7A57 · #D0E9B8 · #232E30
- Monochromatic#51B2CA · #00A5CD · #00C2E8 · #C7F2FF · #1E3033
#51B2CA as a brand color
What a UI color system built from #51B2CA looks like: brand, neutral and status scales, with light and dark tokens that pass WCAG.
Brand
- Brand 50, #EAFAFF
- Brand 100, #CAF3FF
- Brand 200, #9BE7FB
- Brand 300, #79CEE4
- Brand 400, #51B2CA
- Brand 500, #3096AD
- Brand 600, #007A91
- Brand 700, #006072
- Brand 800, #004856
- Brand 900, #00313C
- Brand 950, #001C23
Neutral
- Neutral 50, #F9FAFB
- Neutral 100, #F2F4F5
- Neutral 200, #E2E6E7
- Neutral 300, #CFD5D7
- Neutral 400, #99A3A5
- Neutral 500, #6B7578
- Neutral 600, #4C5659
- Neutral 700, #394245
- Neutral 800, #21292C
- Neutral 900, #12191B
- Neutral 950, #050B0D
Success
- Success 50, #E3FFEE
- Success 100, #B4FFD6
- Success 200, #9AEFC1
- Success 300, #77D6A6
- Success 400, #51BB88
- Success 500, #33A673
- Success 600, #008254
- Success 700, #006641
- Success 800, #004D30
- Success 900, #003520
- Success 950, #001F10
Warning
- Warning 50, #FFF6E5
- Warning 100, #FFE8C0
- Warning 200, #FCD387
- Warning 300, #E5B863
- Warning 400, #D9A846
- Warning 500, #AE7F06
- Warning 600, #8D6600
- Warning 700, #6F4F00
- Warning 800, #543B00
- Warning 900, #3A2800
- Warning 950, #221600
Danger
- Danger 50, #FFF4F3
- Danger 100, #FFE4E2
- Danger 200, #FFCAC7
- Danger 300, #FFA29F
- Danger 400, #F77575
- Danger 500, #D35054
- Danger 600, #B93A40
- Danger 700, #991F2A
- Danger 800, #7B0419
- Danger 900, #58000E
- Danger 950, #360005
Info
- Info 50, #EEF9FF
- Info 100, #D6EFFF
- Info 200, #AFE1FF
- Info 300, #74CBFC
- Info 400, #4EAEE1
- Info 500, #238FC2
- Info 600, #0076A5
- Info 700, #005D82
- Info 800, #004563
- Info 900, #003045
- Info 950, #001B2A
- Primary buttons use Brand 400 with neutral 950 text, at 8.1:1.
- In dark mode primary stays Brand 400: it already reads on the dark background at 8.1:1.
- Neutrals carry a hint of its hue, so grays, borders and surfaces feel related to the brand.
- Success, warning, danger and info lean toward its hue and stay easy to tell apart.
Colors related to #51B2CA
Lighter and darker versions, its complementary color, neighbors on the color wheel and softer variants.