#638BA7#638BA7

#638BA7 is a mid, moderate cyan. Relative luminance 0.239; OKLCH L 61.8% C 0.061 H 239.5°. Best body text is #000000 at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#638BA7
RGB	rgb(99, 139, 167)
HSL	hsl(205, 28%, 52%)
HSV	hsv(205, 41%, 65%)
CMYK	cmyk(40.7%, 16.8%, 0%, 34.5%)
CIE-LAB	lab(55.99, -6.37, -19.16)
CIE-LCH	lch(55.99, 20.19, 251.60°)
OKLab	oklab(61.8% -0.0311 -0.0529)
OKLCH	oklch(61.8% 0.061 239.5)
XYZ	xyz(21.3509, 23.9066, 40.0411)
Luminance	0.2391 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638BA7 #A77F63

analogous

#63A7A1 #638BA7 #6369A7

triadic

#638BA7 #A7638B #8BA763

tetradic

#638BA7 #A163A7 #A77F63 #69A763

square

#638BA7 #A163A7 #A77F63 #69A763

split-complementary

#638BA7 #A76369 #A7A163

monochromatic

#344B5C #4A6B83 #638BA7 #8AA8BD #B1C5D3

Accessibility & contrast

On white

3.63

#638BA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.78

#638BA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638BA7

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638BA7	#FFFFFF	#000000	##000000
##638BA7	1.00	3.63	5.78	5.78
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.78	21.00	1.00	1.00
##000000	5.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8AA8

Deuteranopia (green-blind)

#7683A7

Tritanopia (blue-blind)

#4A9294

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #638ba7;
/* rgb */ color: rgb(99, 139, 167);
/* oklch */ color: oklch(61.8% 0.061 239.5);

Tailwind

colors: {
  custom: {
    50: '#92acc1',
    500: '#638ba7',
    950: '#000000',
  },
}

SCSS

$custom: #638ba7;
$custom-light: #92acc1;
$custom-dark: #000000;

JSON

{
  "hex": "#638ba7",
  "rgb": {
    "r": 99,
    "g": 139,
    "b": 167
  },
  "hsl": {
    "h": 204.706,
    "s": 27.869,
    "l": 52.157
  },
  "oklch": {
    "l": 0.61795,
    "c": 0.0614,
    "h": 239.5
  },
  "luminance": 0.23908
}

Semantic roles & 50–950 ramp

primary

#638BA7

secondary

#C2B0A4

accent

#8B64C4

background

#F9FAFB

surface

#F1F4F7

border

#CBCED0

text

#0D1012

muted

#7E7F81

Preview Lab

Preview with #638BA7

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

Preview Lab → · Contrast checker → · Palette generator →