#638397#638397

#638397 is a mid, muted cyan. Relative luminance 0.211; OKLCH L 59.3% C 0.048 H 236.1°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX#638397
RGBrgb(99, 131, 151)
HSLhsl(203, 21%, 49%)
HSVhsv(203, 34%, 59%)
CMYKcmyk(34.4%, 13.2%, 0%, 40.8%)
CIE-LABlab(53.08, -6.19, -14.36)
CIE-LCHlch(53.08, 15.64, 246.67°)
OKLaboklab(59.3% -0.0265 -0.0394)
OKLCHoklch(59.3% 0.048 236.1)
XYZxyz(18.8460, 21.1187, 32.3554)
Luminance0.2112 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#638397 #977763
analogous
#639791 #638397 #636997
triadic
#638397 #976383 #839763
tetradic
#638397 #916397 #977763 #699763
square
#638397 #916397 #977763 #699763
split-complementary
#638397 #976369 #979163
monochromatic
#33434D #4B6372 #638397 #87A0B0 #ACBEC9

Accessibility & contrast

On white

4.02
#638397 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.22
#638397 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638397
5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##638397#FFFFFF#000000##000000
##6383971.004.025.225.22
#FFFFFF4.021.0021.0021.00
#0000005.2221.001.001.00
##0000005.2221.001.001.00

Color blindness preview

Protanopia (red-blind)
#7A8298
Deuteranopia (green-blind)
#737C97
Tritanopia (blue-blind)
#528889
Achromatopsia (no color)
#7F7F7F

Design tokens & code

CSS
--color: #638397;
/* rgb */ color: rgb(99, 131, 151);
/* oklch */ color: oklch(59.3% 0.048 236.1);
Tailwind
colors: {
  custom: {
    50: '#91a7b5',
    500: '#638397',
    950: '#000000',
  },
}
SCSS
$custom: #638397;
$custom-light: #91a7b5;
$custom-dark: #000000;
JSON
{
  "hex": "#638397",
  "rgb": {
    "r": 99,
    "g": 131,
    "b": 151
  },
  "hsl": {
    "h": 203.077,
    "s": 20.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.59298,
    "c": 0.04752,
    "h": 236.1
  },
  "luminance": 0.2112
}

Semantic roles & 50–950 ramp

primary
#638397
secondary
#B7A89F
accent
#8A6ABD
background
#F9FAFB
surface
#F1F4F6
border
#CBCED0
text
#0D0F11
muted
#7E7F80

Preview Lab

Preview with #638397

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

Preview Lab → · Contrast checker → · Palette generator →

#638397 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva