#25288E#25288E

#25288E is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.2% C 0.164 H 273.0°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#25288E
RGB	rgb(37, 40, 142)
HSL	hsl(238, 59%, 35%)
HSV	hsv(238, 74%, 56%)
CMYK	cmyk(73.9%, 71.8%, 0%, 44.3%)
CIE-LAB	lab(23.21, 34.42, -56.46)
CIE-LCH	lch(23.21, 66.12, 301.37°)
OKLab	oklab(35.24% 0.0084 -0.1633)
OKLCH	oklch(35.24% 0.164 273)
XYZ	xyz(6.4026, 3.8632, 25.9942)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25288E #8E8B25

analogous

#255C8E #25288E #57258E

triadic

#25288E #8E2528 #288E25

tetradic

#25288E #8E255C #8E8B25 #258E57

square

#25288E #8E255C #8E8B25 #258E57

split-complementary

#25288E #8E5725 #5C8E25

monochromatic

#0C0D2D #181A5D #25288E #3236BF #5A5DD4

Accessibility & contrast

On white

11.85

#25288E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#25288E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25288E

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25288E	#FFFFFF	#000000	##FFFFFF
##25288E	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C91

Deuteranopia (green-blind)

#00328C

Tritanopia (blue-blind)

#004458

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #25288e;
/* rgb */ color: rgb(37, 40, 142);
/* oklch */ color: oklch(35.2% 0.164 273.0);

Tailwind

colors: {
  custom: {
    50: '#7163b0',
    500: '#25288e',
    950: '#000000',
  },
}

SCSS

$custom: #25288e;
$custom-light: #7163b0;
$custom-dark: #000000;

JSON

{
  "hex": "#25288e",
  "rgb": {
    "r": 37,
    "g": 40,
    "b": 142
  },
  "hsl": {
    "h": 238.286,
    "s": 58.659,
    "l": 35.098
  },
  "oklch": {
    "l": 0.3524,
    "c": 0.16352,
    "h": 273
  },
  "luminance": 0.03864
}

Semantic roles & 50–950 ramp

primary

#25288E

secondary

#B9B656

accent

#DD46E2

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #25288E

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

Preview Lab → · Contrast checker → · Palette generator →