#55639C#55639C

#55639C is a mid, moderate blue. Relative luminance 0.133; OKLCH L 51.4% C 0.092 H 272.3°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#55639C
RGB	rgb(85, 99, 156)
HSL	hsl(228, 29%, 47%)
HSV	hsv(228, 46%, 61%)
CMYK	cmyk(45.5%, 36.5%, 0%, 38.8%)
CIE-LAB	lab(43.14, 10.42, -32.72)
CIE-LCH	lch(43.14, 34.34, 287.67°)
OKLab	oklab(51.36% 0.0037 -0.092)
OKLCH	oklch(51.36% 0.092 272.3)
XYZ	xyz(14.2070, 13.2545, 33.2558)
Luminance	0.1326 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55639C #9C8E55

analogous

#55879C #55639C #6B559C

triadic

#55639C #9C5563 #639C55

tetradic

#55639C #9C5587 #9C8E55 #559C6B

square

#55639C #9C5587 #9C8E55 #559C6B

split-complementary

#55639C #9C6B55 #879C55

monochromatic

#2A314D #3F4A74 #55639C #7885B6 #A0A9CB

Accessibility & contrast

On white

5.75

#55639C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#55639C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #55639C

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55639C	#FFFFFF	#000000	##FFFFFF
##55639C	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E699E

Deuteranopia (green-blind)

#48639B

Tritanopia (blue-blind)

#3C6F78

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #55639c;
/* rgb */ color: rgb(85, 99, 156);
/* oklch */ color: oklch(51.4% 0.092 272.3);

Tailwind

colors: {
  custom: {
    50: '#888fb9',
    500: '#55639c',
    950: '#000000',
  },
}

SCSS

$custom: #55639c;
$custom-light: #888fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#55639c",
  "rgb": {
    "r": 85,
    "g": 99,
    "b": 156
  },
  "hsl": {
    "h": 228.169,
    "s": 29.461,
    "l": 47.255
  },
  "oklch": {
    "l": 0.51363,
    "c": 0.09211,
    "h": 272.3
  },
  "luminance": 0.13255
}

Semantic roles & 50–950 ramp

primary

#55639C

secondary

#B9B194

accent

#B262C6

background

#F8F8FB

surface

#F0F0F6

border

#CBCBD0

text

#0C0C11

muted

#7D7D80

Preview Lab

Preview with #55639C

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

Preview Lab → · Contrast checker → · Palette generator →