#25178D#25178D

#25178D is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.8% C 0.179 H 275.4°. Best body text is #FFFFFF at 13.24:1 contrast (WCAG AA passes).

Color values

HEX#25178D
RGBrgb(37, 23, 141)
HSLhsl(247, 72%, 32%)
HSVhsv(247, 84%, 55%)
CMYKcmyk(73.8%, 83.7%, 0%, 44.7%)
CIE-LABlab(19.76, 43.58, -61.55)
CIE-LCHlch(19.76, 75.42, 305.30°)
OKLaboklab(32.77% 0.0169 -0.1779)
OKLCHoklch(32.77% 0.179 275.4)
XYZxyz(5.8755, 2.9286, 25.4498)
Luminance0.0293 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#25178D #7F8D17
analogous
#17448D #25178D #60178D
triadic
#25178D #8D2517 #178D25
tetradic
#25178D #8D1744 #7F8D17 #178D60
square
#25178D #8D1744 #7F8D17 #178D60
split-complementary
#25178D #8D6017 #448D17
monochromatic
#090624 #170E58 #25178D #3320C2 #523FE0

Accessibility & contrast

On white

13.24
#25178D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.59
#25178D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25178D
13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##25178D#FFFFFF#000000##FFFFFF
##25178D1.0013.241.5913.24
#FFFFFF13.241.0021.001.00
#0000001.5921.001.0021.00
##FFFFFF13.241.0021.001.00

Color blindness preview

Protanopia (red-blind)
#003590
Deuteranopia (green-blind)
#002A8B
Tritanopia (blue-blind)
#003C53
Achromatopsia (no color)
#303030

Design tokens & code

CSS
--color: #25178d;
/* rgb */ color: rgb(37, 23, 141);
/* oklch */ color: oklch(32.8% 0.179 275.4);
Tailwind
colors: {
  custom: {
    50: '#7258b0',
    500: '#25178d',
    950: '#000000',
  },
}
SCSS
$custom: #25178d;
$custom-light: #7258b0;
$custom-dark: #000000;
JSON
{
  "hex": "#25178d",
  "rgb": {
    "r": 37,
    "g": 23,
    "b": 141
  },
  "hsl": {
    "h": 247.119,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.32767,
    "c": 0.17874,
    "h": 275.4
  },
  "luminance": 0.02929
}

Semantic roles & 50–950 ramp

primary
#25178D
secondary
#B1C040
accent
#EF39D9
background
#F7F5FB
surface
#EDE9F6
border
#C8C5D0
text
#090411
muted
#7B7980

Preview Lab

Preview with #25178D

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

Preview Lab → · Contrast checker → · Palette generator →

#25178D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva