#638EA4#638EA4

#638EA4 is a light, muted cyan. Relative luminance 0.247; OKLCH L 62.4% C 0.058 H 231.1°. Best body text is #000000 at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#638EA4
RGB	rgb(99, 142, 164)
HSL	hsl(200, 26%, 52%)
HSV	hsv(200, 40%, 64%)
CMYK	cmyk(39.6%, 13.4%, 0%, 35.7%)
CIE-LAB	lab(56.76, -8.89, -16.28)
CIE-LCH	lch(56.76, 18.55, 241.36°)
OKLab	oklab(62.37% -0.0362 -0.0448)
OKLCH	oklch(62.37% 0.058 231.1)
XYZ	xyz(21.5172, 24.6777, 38.7442)
Luminance	0.2468 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638EA4 #A47963

analogous

#63A49A #638EA4 #636EA4

triadic

#638EA4 #A4638E #8EA463

tetradic

#638EA4 #9A63A4 #A47963 #6EA463

square

#638EA4 #9A63A4 #A47963 #6EA463

split-complementary

#638EA4 #A4636E #A49A63

monochromatic

#344C59 #4A6D7F #638EA4 #8AAABB #B0C6D1

Accessibility & contrast

On white

3.54

#638EA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.94

#638EA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638EA4

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638EA4	#FFFFFF	#000000	##000000
##638EA4	1.00	3.54	5.94	5.94
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.94	21.00	1.00	1.00
##000000	5.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#838CA5

Deuteranopia (green-blind)

#7A85A4

Tritanopia (blue-blind)

#4B9495

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #638ea4;
/* rgb */ color: rgb(99, 142, 164);
/* oklch */ color: oklch(62.4% 0.058 231.1);

Tailwind

colors: {
  custom: {
    50: '#92afbf',
    500: '#638ea4',
    950: '#000000',
  },
}

SCSS

$custom: #638ea4;
$custom-light: #92afbf;
$custom-dark: #000000;

JSON

{
  "hex": "#638ea4",
  "rgb": {
    "r": 99,
    "g": 142,
    "b": 164
  },
  "hsl": {
    "h": 200.308,
    "s": 26.316,
    "l": 51.569
  },
  "oklch": {
    "l": 0.62365,
    "c": 0.05759,
    "h": 231.1
  },
  "luminance": 0.24679
}

Semantic roles & 50–950 ramp

primary

#638EA4

secondary

#C0ADA3

accent

#8565C3

background

#F9FAFB

surface

#F1F4F7

border

#CBCED0

text

#0D1012

muted

#7E7F81

Preview Lab

Preview with #638EA4

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

Preview Lab → · Contrast checker → · Palette generator →