#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
RGBrgb(99, 156, 199)
HSLhsl(206, 47%, 58%)
HSVhsv(206, 50%, 78%)
CMYKcmyk(50.3%, 21.6%, 0%, 22%)
CIE-LABlab(62.13, -6.70, -27.87)
CIE-LCHlch(62.13, 28.66, 256.48°)
OKLaboklab(67.05% -0.0408 -0.0777)
OKLCHoklch(67.05% 0.088 242.3)
XYZxyz(27.3392, 30.5510, 58.4780)
Luminance0.3055 (WCAG relative)
Temperaturecool
Familycyan

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
##639CC71.002.957.117.11
#FFFFFF2.951.0021.0021.00
#0000007.1121.001.001.00
##0000007.1121.001.001.00

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 →

#639CC7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva