Sygen

Muted sky blue

#647B7E

#647B7E is a muted sky blue with low intensity, at step 600 of its 50–950 scale. White text on it has a contrast of 4.5:1. On white it reaches only 4.5:1, so use a darker shade for text.

Build a color system Shades Contrast
Muted sky blue#647B7E
HWB, OKLab, LCH, Lab and Display P3

#647B7E shades and tints

Eleven steps from 50 to 950 with #647B7E kept exactly at step 600. Lightness steps are even to the eye, and intensity tapers toward the lightest and darkest steps.

Open in shade generator
  1. 50 E9FBFD
  2. 100 DCEFF2
  3. 200 C9DEE0
  4. 300 AEC4C7
  5. 400 91A8AB
  6. 500 758D90
  7. 600 647B7E
  8. 700 455A5C
  9. 800 314446
  10. 900 1F2F31
  11. 950 0E1B1C

Tailwind CSS v4 theme

@theme {  --color-sky-blue-50: #e9fbfd;  --color-sky-blue-100: #dceff2;  --color-sky-blue-200: #c9dee0;  --color-sky-blue-300: #aec4c7;  --color-sky-blue-400: #91a8ab;  --color-sky-blue-500: #758d90;  --color-sky-blue-600: #647b7e;  --color-sky-blue-700: #455a5c;  --color-sky-blue-800: #314446;  --color-sky-blue-900: #1f2f31;  --color-sky-blue-950: #0e1b1c;}

Is #647B7E readable?

Contrast for text on #647B7E and for #647B7E 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.

Color palettes with #647B7E

Six palettes built around #647B7E, each starting from the exact color. Open one in the palette tool to adjust it or get more options.

#647B7E as a brand color

What a UI color system built from #647B7E looks like: brand, neutral and status scales, with light and dark tokens that pass WCAG.

Open in builder

Brand

  1. Brand 50, #E9FBFD
  2. Brand 100, #DCEFF2
  3. Brand 200, #C9DEE0
  4. Brand 300, #AEC4C7
  5. Brand 400, #91A8AB
  6. Brand 500, #758D90
  7. Brand 600, #647B7E
  8. Brand 700, #455A5C
  9. Brand 800, #314446
  10. Brand 900, #1F2F31
  11. Brand 950, #0E1B1C

Neutral

  1. Neutral 50, #F9FAFB
  2. Neutral 100, #F2F5F5
  3. Neutral 200, #E2E6E7
  4. Neutral 300, #CFD6D6
  5. Neutral 400, #99A3A4
  6. Neutral 500, #6B7677
  7. Neutral 600, #4C5658
  8. Neutral 700, #394244
  9. Neutral 800, #212A2B
  10. Neutral 900, #111A1B
  11. Neutral 950, #050C0D

Success

  1. Success 50, #E5FFE9
  2. Success 100, #BEFECA
  3. Success 200, #A7EDB5
  4. Success 300, #87D597
  5. Success 400, #65B979
  6. Success 500, #439A5B
  7. Success 600, #278143
  8. Success 700, #06672E
  9. Success 800, #004E20
  10. Success 900, #003614
  11. Success 950, #001F09

Warning

  1. Warning 50, #FFF5E9
  2. Warning 100, #FFE7CA
  3. Warning 200, #FFD096
  4. Warning 300, #EEB367
  5. Warning 400, #DC9C45
  6. Warning 500, #B67917
  7. Warning 600, #956000
  8. Warning 700, #764B00
  9. Warning 800, #593800
  10. Warning 900, #3E2500
  11. Warning 950, #251400

Danger

  1. Danger 50, #FFF4F2
  2. Danger 100, #FFE4E0
  3. Danger 200, #FFCBC4
  4. Danger 300, #FFA398
  5. Danger 400, #F7766B
  6. Danger 500, #D9584E
  7. Danger 600, #C84840
  8. Danger 700, #9A211F
  9. Danger 800, #7B070C
  10. Danger 900, #580004
  11. Danger 950, #360002

Info

  1. Info 50, #F0F8FF
  2. Info 100, #DBEEFF
  3. Info 200, #B9DEFF
  4. Info 300, #84C7FF
  5. Info 400, #5FAAE7
  6. Info 500, #3282BE
  7. Info 600, #2173AD
  8. Info 700, #00598F
  9. Info 800, #00436D
  10. Info 900, #002E4D
  11. Info 950, #001A2F
  • Primary buttons use Brand 600 with white text, at 4.5:1.
  • In dark mode primary lifts to Brand 500 so it reads on the dark background, at 5.6:1.
  • 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 #647B7E

Lighter and darker versions, its complementary color, neighbors on the color wheel and softer variants.