#639CC7#639CC7

#639CC7 is a light, moderate cyan. Relative luminance 0.306; OKLCH L 67.0% C 0.088 H 242.3°. Best body text is #000000 at 7.11:1 contrast (WCAG AA passes).

Color values

HEX	#639CC7
RGB	rgb(99, 156, 199)
HSL	hsl(206, 47%, 58%)
HSV	hsv(206, 50%, 78%)
CMYK	cmyk(50.3%, 21.6%, 0%, 22%)
CIE-LAB	lab(62.13, -6.70, -27.87)
CIE-LCH	lch(62.13, 28.66, 256.48°)
OKLab	oklab(67.05% -0.0408 -0.0777)
OKLCH	oklch(67.05% 0.088 242.3)
XYZ	xyz(27.3392, 30.5510, 58.4780)
Luminance	0.3055 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#639CC7 #C78E63

analogous

#63C7C0 #639CC7 #636AC7

triadic

#639CC7 #C7639C #9CC763

tetradic

#639CC7 #C063C7 #C78E63 #6AC763

square

#639CC7 #C063C7 #C78E63 #6AC763

split-complementary

#639CC7 #C7636A #C7C063

monochromatic

#2E5E81 #3F7EAE #639CC7 #90B9D7 #BDD5E7

Accessibility & contrast

On white

2.95

#639CC7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.11

#639CC7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #639CC7

7.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##639CC7	#FFFFFF	#000000	##000000
##639CC7	1.00	2.95	7.11	7.11
#FFFFFF	2.95	1.00	21.00	21.00
#000000	7.11	21.00	1.00	1.00
##000000	7.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#899CC9

Deuteranopia (green-blind)

#7C92C6

Tritanopia (blue-blind)

#30A7AA

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #639cc7;
/* rgb */ color: rgb(99, 156, 199);
/* oklch */ color: oklch(67.0% 0.088 242.3);

Tailwind

colors: {
  custom: {
    50: '#95b9d8',
    500: '#639cc7',
    950: '#000000',
  },
}

SCSS

$custom: #639cc7;
$custom-light: #95b9d8;
$custom-dark: #000000;

JSON

{
  "hex": "#639cc7",
  "rgb": {
    "r": 99,
    "g": 156,
    "b": 199
  },
  "hsl": {
    "h": 205.8,
    "s": 47.17,
    "l": 58.431
  },
  "oklch": {
    "l": 0.67047,
    "c": 0.08775,
    "h": 242.3
  },
  "luminance": 0.30553
}

Semantic roles & 50–950 ramp

primary

#639CC7

secondary

#D7C0AF

accent

#8B51D7

background

#F9FBFD

surface

#F2F6FA

border

#CCD0D3

text

#0E1114

muted

#7E8083

Preview Lab

Preview with #639CC7

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

Preview Lab → · Contrast checker → · Palette generator →