#636AA9#636AA9

#636AA9 is a mid, moderate blue. Relative luminance 0.158; OKLCH L 54.6% C 0.098 H 277.8°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#636AA9
RGB	rgb(99, 106, 169)
HSL	hsl(234, 29%, 53%)
HSV	hsv(234, 41%, 66%)
CMYK	cmyk(41.4%, 37.3%, 0%, 33.7%)
CIE-LAB	lab(46.74, 13.78, -34.66)
CIE-LCH	lch(46.74, 37.30, 291.68°)
OKLab	oklab(54.61% 0.0133 -0.0974)
OKLCH	oklch(54.61% 0.098 277.8)
XYZ	xyz(17.4589, 15.8245, 39.6629)
Luminance	0.1583 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636AA9 #A9A263

analogous

#638DA9 #636AA9 #7F63A9

triadic

#636AA9 #A9636A #6AA963

tetradic

#636AA9 #A9638D #A9A263 #63A97F

square

#636AA9 #A9638D #A9A263 #63A97F

split-complementary

#636AA9 #A97F63 #8DA963

monochromatic

#34385E #494F85 #636AA9 #8A90BF #B2B5D4

Accessibility & contrast

On white

5.04

#636AA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#636AA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #636AA9

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636AA9	#FFFFFF	#000000	##FFFFFF
##636AA9	1.00	5.04	4.16	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5472AC

Deuteranopia (green-blind)

#506CA8

Tritanopia (blue-blind)

#4D7781

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #636aa9;
/* rgb */ color: rgb(99, 106, 169);
/* oklch */ color: oklch(54.6% 0.098 277.8);

Tailwind

colors: {
  custom: {
    50: '#9294c3',
    500: '#636aa9',
    950: '#000000',
  },
}

SCSS

$custom: #636aa9;
$custom-light: #9294c3;
$custom-dark: #000000;

JSON

{
  "hex": "#636aa9",
  "rgb": {
    "r": 99,
    "g": 106,
    "b": 169
  },
  "hsl": {
    "h": 234,
    "s": 28.926,
    "l": 52.549
  },
  "oklch": {
    "l": 0.54605,
    "c": 0.09827,
    "h": 277.8
  },
  "luminance": 0.15825
}

Semantic roles & 50–950 ramp

primary

#636AA9

secondary

#C3C0A5

accent

#BB63C5

background

#F9F9FC

surface

#F1F1F8

border

#CBCBD1

text

#0D0D12

muted

#7E7E81

Preview Lab

Preview with #636AA9

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

Preview Lab → · Contrast checker → · Palette generator →