#25388B#25388B

#25388B is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.9% C 0.140 H 268.9°. Best body text is #FFFFFF at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#25388B
RGB	rgb(37, 56, 139)
HSL	hsl(229, 58%, 35%)
HSV	hsv(229, 73%, 55%)
CMYK	cmyk(73.4%, 59.7%, 0%, 45.5%)
CIE-LAB	lab(26.98, 22.69, -48.44)
CIE-LCH	lch(26.98, 53.49, 295.10°)
OKLab	oklab(37.91% -0.0027 -0.1397)
OKLCH	oklch(37.91% 0.14 268.9)
XYZ	xyz(6.8357, 5.0850, 25.0423)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25388B #8B7825

analogous

#256B8B #25388B #45258B

triadic

#25388B #8B2538 #388B25

tetradic

#25388B #8B256B #8B7825 #258B45

square

#25388B #8B256B #8B7825 #258B45

split-complementary

#25388B #8B4525 #6B8B25

monochromatic

#0B112A #18255B #25388B #324BBB #586FD3

Accessibility & contrast

On white

10.41

#25388B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#25388B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25388B

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25388B	#FFFFFF	#000000	##FFFFFF
##25388B	1.00	10.41	2.02	10.41
#FFFFFF	10.41	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458E

Deuteranopia (green-blind)

#003B89

Tritanopia (blue-blind)

#004D5C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #25388b;
/* rgb */ color: rgb(37, 56, 139);
/* oklch */ color: oklch(37.9% 0.140 268.9);

Tailwind

colors: {
  custom: {
    50: '#6e6eae',
    500: '#25388b',
    950: '#000000',
  },
}

SCSS

$custom: #25388b;
$custom-light: #6e6eae;
$custom-dark: #000000;

JSON

{
  "hex": "#25388b",
  "rgb": {
    "r": 37,
    "g": 56,
    "b": 139
  },
  "hsl": {
    "h": 228.824,
    "s": 57.955,
    "l": 34.51
  },
  "oklch": {
    "l": 0.37914,
    "c": 0.13972,
    "h": 268.9
  },
  "luminance": 0.05086
}

Semantic roles & 50–950 ramp

primary

#25388B

secondary

#B7A555

accent

#C447E1

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #25388B

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

Preview Lab → · Contrast checker → · Palette generator →