#25377D#25377D

#25377D is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.5% C 0.121 H 268.8°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).

Color values

HEX	#25377D
RGB	rgb(37, 55, 125)
HSL	hsl(228, 54%, 32%)
HSV	hsv(228, 70%, 49%)
CMYK	cmyk(70.4%, 56%, 0%, 51%)
CIE-LAB	lab(25.58, 17.95, -41.96)
CIE-LCH	lch(25.58, 45.64, 293.17°)
OKLab	oklab(36.52% -0.0025 -0.1206)
OKLCH	oklch(36.52% 0.121 268.8)
XYZ	xyz(5.8295, 4.6058, 19.9799)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25377D #7D6B25

analogous

#25637D #25377D #3F257D

triadic

#25377D #7D2537 #377D25

tetradic

#25377D #7D2563 #7D6B25 #257D3F

square

#25377D #7D2563 #7D6B25 #257D3F

split-complementary

#25377D #7D3F25 #637D25

monochromatic

#090D1F #17224E #25377D #334CAC #516ACB

Accessibility & contrast

On white

10.93

#25377D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#25377D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25377D

10.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25377D	#FFFFFF	#000000	##FFFFFF
##25377D	1.00	10.93	1.92	10.93
#FFFFFF	10.93	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03417F

Deuteranopia (green-blind)

#00397C

Tritanopia (blue-blind)

#004854

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #25377d;
/* rgb */ color: rgb(37, 55, 125);
/* oklch */ color: oklch(36.5% 0.121 268.8);

Tailwind

colors: {
  custom: {
    50: '#6b6da3',
    500: '#25377d',
    950: '#000000',
  },
}

SCSS

$custom: #25377d;
$custom-light: #6b6da3;
$custom-dark: #000000;

JSON

{
  "hex": "#25377d",
  "rgb": {
    "r": 37,
    "g": 55,
    "b": 125
  },
  "hsl": {
    "h": 227.727,
    "s": 54.321,
    "l": 31.765
  },
  "oklch": {
    "l": 0.36517,
    "c": 0.12068,
    "h": 268.8
  },
  "luminance": 0.04606
}

Semantic roles & 50–950 ramp

primary

#25377D

secondary

#AF9B4F

accent

#BF4ADE

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #25377D

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

Preview Lab → · Contrast checker → · Palette generator →