#25397B#25397B

#25397B is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.8% C 0.115 H 267.7°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#25397B
RGB	rgb(37, 57, 123)
HSL	hsl(226, 54%, 31%)
HSV	hsv(226, 70%, 48%)
CMYK	cmyk(69.9%, 53.7%, 0%, 51.8%)
CIE-LAB	lab(26.01, 15.78, -40.01)
CIE-LCH	lch(26.01, 43.01, 291.53°)
OKLab	oklab(36.79% -0.0046 -0.1149)
OKLCH	oklch(36.79% 0.115 267.7)
XYZ	xyz(5.8000, 4.7491, 19.3461)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25397B #7B6725

analogous

#25647B #25397B #3C257B

triadic

#25397B #7B2539 #397B25

tetradic

#25397B #7B2564 #7B6725 #257B3C

square

#25397B #7B2564 #7B6725 #257B3C

split-complementary

#25397B #7B3C25 #647B25

monochromatic

#090D1D #17234C #25397B #334FAA #506CCA

Accessibility & contrast

On white

10.77

#25397B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#25397B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25397B

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25397B	#FFFFFF	#000000	##FFFFFF
##25397B	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#10427D

Deuteranopia (green-blind)

#003A7A

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #25397b;
/* rgb */ color: rgb(37, 57, 123);
/* oklch */ color: oklch(36.8% 0.115 267.7);

Tailwind

colors: {
  custom: {
    50: '#6b6fa2',
    500: '#25397b',
    950: '#000000',
  },
}

SCSS

$custom: #25397b;
$custom-light: #6b6fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#25397b",
  "rgb": {
    "r": 37,
    "g": 57,
    "b": 123
  },
  "hsl": {
    "h": 226.047,
    "s": 53.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.36791,
    "c": 0.11497,
    "h": 267.7
  },
  "luminance": 0.0475
}

Semantic roles & 50–950 ramp

primary

#25397B

secondary

#AD974F

accent

#BB4BDD

background

#F6F6FA

surface

#ECECF3

border

#C7C7CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #25397B

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

Preview Lab → · Contrast checker → · Palette generator →