#638EA7#638EA7

#638EA7 is a light, moderate cyan. Relative luminance 0.248; OKLCH L 62.5% C 0.060 H 234.5°. Best body text is #000000 at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#638EA7
RGB	rgb(99, 142, 167)
HSL	hsl(202, 28%, 52%)
HSV	hsv(202, 41%, 65%)
CMYK	cmyk(40.7%, 15%, 0%, 34.5%)
CIE-LAB	lab(56.87, -8.06, -17.83)
CIE-LCH	lch(56.87, 19.57, 245.67°)
OKLab	oklab(62.49% -0.035 -0.0492)
OKLCH	oklch(62.49% 0.06 234.5)
XYZ	xyz(21.7913, 24.7873, 40.1879)
Luminance	0.2479 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638EA7 #A77C63

analogous

#63A79E #638EA7 #636CA7

triadic

#638EA7 #A7638E #8EA763

tetradic

#638EA7 #9E63A7 #A77C63 #6CA763

square

#638EA7 #9E63A7 #A77C63 #6CA763

split-complementary

#638EA7 #A7636C #A79E63

monochromatic

#344D5C #4A6E83 #638EA7 #8AAABD #B1C7D3

Accessibility & contrast

On white

3.52

#638EA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.96

#638EA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638EA7

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638EA7	#FFFFFF	#000000	##000000
##638EA7	1.00	3.52	5.96	5.96
#FFFFFF	3.52	1.00	21.00	21.00
#000000	5.96	21.00	1.00	1.00
##000000	5.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#828DA8

Deuteranopia (green-blind)

#7985A7

Tritanopia (blue-blind)

#499596

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #638ea7;
/* rgb */ color: rgb(99, 142, 167);
/* oklch */ color: oklch(62.5% 0.060 234.5);

Tailwind

colors: {
  custom: {
    50: '#92afc1',
    500: '#638ea7',
    950: '#000000',
  },
}

SCSS

$custom: #638ea7;
$custom-light: #92afc1;
$custom-dark: #000000;

JSON

{
  "hex": "#638ea7",
  "rgb": {
    "r": 99,
    "g": 142,
    "b": 167
  },
  "hsl": {
    "h": 202.059,
    "s": 27.869,
    "l": 52.157
  },
  "oklch": {
    "l": 0.62486,
    "c": 0.06037,
    "h": 234.5
  },
  "luminance": 0.24789
}

Semantic roles & 50–950 ramp

primary

#638EA7

secondary

#C2AFA4

accent

#8764C4

background

#F9FAFB

surface

#F1F4F7

border

#CBCED0

text

#0D1012

muted

#7E7F81

Preview Lab

Preview with #638EA7

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

Preview Lab → · Contrast checker → · Palette generator →