#636497#636497

#636497 is a mid, moderate blue. Relative luminance 0.140; OKLCH L 52.4% C 0.080 H 282.4°. Best body text is #FFFFFF at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#636497
RGB	rgb(99, 100, 151)
HSL	hsl(239, 21%, 49%)
HSV	hsv(239, 34%, 59%)
CMYK	cmyk(34.4%, 33.8%, 0%, 40.8%)
CIE-LAB	lab(44.23, 12.28, -27.96)
CIE-LCH	lch(44.23, 30.54, 293.72°)
OKLab	oklab(52.39% 0.0172 -0.078)
OKLCH	oklch(52.39% 0.08 282.4)
XYZ	xyz(15.2871, 14.0009, 31.1691)
Luminance	0.1400 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#636497 #979663

analogous

#637E97 #636497 #7C6397

triadic

#636497 #976364 #649763

tetradic

#636497 #97637E #979663 #63977C

square

#636497 #97637E #979663 #63977C

split-complementary

#636497 #977C63 #7E9763

monochromatic

#33334D #4B4C72 #636497 #8788B0 #ACACC9

Accessibility & contrast

On white

5.53

#636497 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#636497 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #636497

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##636497	#FFFFFF	#000000	##FFFFFF
##636497	1.00	5.53	3.80	5.53
#FFFFFF	5.53	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#546A99

Deuteranopia (green-blind)

#526796

Tritanopia (blue-blind)

#556E76

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #636497;
/* rgb */ color: rgb(99, 100, 151);
/* oklch */ color: oklch(52.4% 0.080 282.4);

Tailwind

colors: {
  custom: {
    50: '#9190b6',
    500: '#636497',
    950: '#000000',
  },
}

SCSS

$custom: #636497;
$custom-light: #9190b6;
$custom-dark: #000000;

JSON

{
  "hex": "#636497",
  "rgb": {
    "r": 99,
    "g": 100,
    "b": 151
  },
  "hsl": {
    "h": 238.846,
    "s": 20.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.5239,
    "c": 0.07984,
    "h": 282.4
  },
  "luminance": 0.14001
}

Semantic roles & 50–950 ramp

primary

#636497

secondary

#B7B79F

accent

#BC6ABD

background

#F9F8FB

surface

#F1F0F6

border

#CBCBD0

text

#0D0C11

muted

#7E7D80

Preview Lab

Preview with #636497

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

Preview Lab → · Contrast checker → · Palette generator →