#25639B#25639B

#25639B is a mid, moderate cyan. Relative luminance 0.117; OKLCH L 48.8% C 0.110 H 249.3°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX#25639B
RGBrgb(37, 99, 155)
HSLhsl(208, 61%, 38%)
HSVhsv(208, 76%, 61%)
CMYKcmyk(76.1%, 36.1%, 0%, 39.2%)
CIE-LABlab(40.71, 0.26, -36.13)
CIE-LCHlch(40.71, 36.13, 270.41°)
OKLaboklab(48.81% -0.0389 -0.1028)
OKLCHoklch(48.81% 0.11 249.3)
XYZxyz(11.1389, 11.6823, 32.6718)
Luminance0.1168 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#25639B #9B5D25
analogous
#259B98 #25639B #25289B
triadic
#25639B #9B2563 #639B25
tetradic
#25639B #98259B #9B5D25 #289B25
square
#25639B #98259B #9B5D25 #289B25
split-complementary
#25639B #9B2528 #9B9825
monochromatic
#0D2438 #19436A #25639B #3183CC #61A0D9

Accessibility & contrast

On white

6.29
#25639B on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.34
#25639B on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #25639B
6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##25639B#FFFFFF#000000##FFFFFF
##25639B1.006.293.346.29
#FFFFFF6.291.0021.001.00
#0000003.3421.001.0021.00
##FFFFFF6.291.0021.001.00

Color blindness preview

Protanopia (red-blind)
#49669D
Deuteranopia (green-blind)
#385B9A
Tritanopia (blue-blind)
#007077
Achromatopsia (no color)
#606060

Design tokens & code

CSS
--color: #25639b;
/* rgb */ color: rgb(37, 99, 155);
/* oklch */ color: oklch(48.8% 0.110 249.3);
Tailwind
colors: {
  custom: {
    50: '#708fb9',
    500: '#25639b',
    950: '#000000',
  },
}
SCSS
$custom: #25639b;
$custom-light: #708fb9;
$custom-dark: #000000;
JSON
{
  "hex": "#25639b",
  "rgb": {
    "r": 37,
    "g": 99,
    "b": 155
  },
  "hsl": {
    "h": 208.475,
    "s": 61.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.48807,
    "c": 0.10988,
    "h": 249.3
  },
  "luminance": 0.11684
}

Semantic roles & 50–950 ramp

primary
#25639B
secondary
#BF8B5D
accent
#9043E5
background
#F7F8FB
surface
#EDF0F6
border
#C8CBD0
text
#090C11
muted
#7B7D80

Preview Lab

Preview with #25639B

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

Preview Lab → · Contrast checker → · Palette generator →

#25639B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva