#638ABC#638ABC

#638ABC is a light, moderate cyan. Relative luminance 0.245; OKLCH L 62.5% C 0.088 H 255.0°. Best body text is #000000 at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#638ABC
RGB	rgb(99, 138, 188)
HSL	hsl(214, 40%, 56%)
HSV	hsv(214, 47%, 74%)
CMYK	cmyk(47.3%, 26.6%, 0%, 26.3%)
CIE-LAB	lab(56.54, 0.27, -30.31)
CIE-LCH	lch(56.54, 30.31, 270.51°)
OKLab	oklab(62.5% -0.0227 -0.0847)
OKLCH	oklch(62.5% 0.088 255)
XYZ	xyz(23.3081, 24.4589, 51.0600)
Luminance	0.2446 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638ABC #BC9563

analogous

#63B7BC #638ABC #6963BC

triadic

#638ABC #BC638A #8ABC63

tetradic

#638ABC #BC63B7 #BC9563 #63BC69

square

#638ABC #BC63B7 #BC9563 #63BC69

split-complementary

#638ABC #BC6963 #B7BC63

monochromatic

#314E73 #446B9E #638ABC #8EAACE #B9CAE1

Accessibility & contrast

On white

3.56

#638ABC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.89

#638ABC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638ABC

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638ABC	#FFFFFF	#000000	##000000
##638ABC	1.00	3.56	5.89	5.89
#FFFFFF	3.56	1.00	21.00	21.00
#000000	5.89	21.00	1.00	1.00
##000000	5.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778CBE

Deuteranopia (green-blind)

#6C84BB

Tritanopia (blue-blind)

#3D959B

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #638abc;
/* rgb */ color: rgb(99, 138, 188);
/* oklch */ color: oklch(62.5% 0.088 255.0);

Tailwind

colors: {
  custom: {
    50: '#94acd0',
    500: '#638abc',
    950: '#000000',
  },
}

SCSS

$custom: #638abc;
$custom-light: #94acd0;
$custom-dark: #000000;

JSON

{
  "hex": "#638abc",
  "rgb": {
    "r": 99,
    "g": 138,
    "b": 188
  },
  "hsl": {
    "h": 213.708,
    "s": 39.91,
    "l": 56.275
  },
  "oklch": {
    "l": 0.62504,
    "c": 0.08767,
    "h": 255
  },
  "luminance": 0.2446
}

Semantic roles & 50–950 ramp

primary

#638ABC

secondary

#D0C0AB

accent

#9B58D0

background

#F9FAFC

surface

#F2F4F9

border

#CCCED2

text

#0D1014

muted

#7E7F82

Preview Lab

Preview with #638ABC

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

Preview Lab → · Contrast checker → · Palette generator →