#677BB9#677BB9

#677BB9 is a mid, moderate blue. Relative luminance 0.206; OKLCH L 59.3% C 0.098 H 269.6°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#677BB9
RGB	rgb(103, 123, 185)
HSL	hsl(225, 37%, 56%)
HSV	hsv(225, 44%, 73%)
CMYK	cmyk(44.3%, 33.5%, 0%, 27.5%)
CIE-LAB	lab(52.45, 9.26, -34.95)
CIE-LCH	lch(52.45, 36.16, 284.84°)
OKLab	oklab(59.34% -0.0006 -0.0981)
OKLCH	oklch(59.34% 0.098 269.6)
XYZ	xyz(21.4307, 20.5511, 48.7271)
Luminance	0.2055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#677BB9 #B9A567

analogous

#67A4B9 #677BB9 #7C67B9

triadic

#677BB9 #B9677B #7BB967

tetradic

#677BB9 #B967A4 #B9A567 #67B97C

square

#677BB9 #B967A4 #B9A567 #67B97C

split-complementary

#677BB9 #B97C67 #A4B967

monochromatic

#344371 #485C9B #677BB9 #919FCC #BBC4E0

Accessibility & contrast

On white

4.11

#677BB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#677BB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #677BB9

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##677BB9	#FFFFFF	#000000	##000000
##677BB9	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6581BC

Deuteranopia (green-blind)

#5D7AB8

Tritanopia (blue-blind)

#4A8891

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #677bb9;
/* rgb */ color: rgb(103, 123, 185);
/* oklch */ color: oklch(59.3% 0.098 269.6);

Tailwind

colors: {
  custom: {
    50: '#96a1ce',
    500: '#677bb9',
    950: '#000000',
  },
}

SCSS

$custom: #677bb9;
$custom-light: #96a1ce;
$custom-dark: #000000;

JSON

{
  "hex": "#677bb9",
  "rgb": {
    "r": 103,
    "g": 123,
    "b": 185
  },
  "hsl": {
    "h": 225.366,
    "s": 36.937,
    "l": 56.471
  },
  "oklch": {
    "l": 0.59337,
    "c": 0.09809,
    "h": 269.6
  },
  "luminance": 0.20552
}

Semantic roles & 50–950 ramp

primary

#677BB9

secondary

#CFC7AD

accent

#B15BCD

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0E13

muted

#7E7E82

Preview Lab

Preview with #677BB9

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →