#25178E#25178E

#25178E is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.9% C 0.180 H 275.3°. Best body text is #FFFFFF at 13.19:1 contrast (WCAG AA passes).

Color values

HEX	#25178E
RGB	rgb(37, 23, 142)
HSL	hsl(247, 72%, 32%)
HSV	hsv(247, 84%, 56%)
CMYK	cmyk(73.9%, 83.8%, 0%, 44.3%)
CIE-LAB	lab(19.88, 43.89, -61.97)
CIE-LCH	lch(19.88, 75.94, 305.31°)
OKLab	oklab(32.89% 0.0166 -0.1792)
OKLCH	oklch(32.89% 0.18 275.3)
XYZ	xyz(5.9502, 2.9585, 25.8434)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25178E #808E17

analogous

#17448E #25178E #61178E

triadic

#25178E #8E2517 #178E25

tetradic

#25178E #8E1744 #808E17 #178E61

square

#25178E #8E1744 #808E17 #178E61

split-complementary

#25178E #8E6117 #448E17

monochromatic

#0A0625 #170E59 #25178E #3320C3 #523FE0

Accessibility & contrast

On white

13.19

#25178E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#25178E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25178E

13.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25178E	#FFFFFF	#000000	##FFFFFF
##25178E	1.00	13.19	1.59	13.19
#FFFFFF	13.19	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003591

Deuteranopia (green-blind)

#002B8C

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #25178e;
/* rgb */ color: rgb(37, 23, 142);
/* oklch */ color: oklch(32.9% 0.180 275.3);

Tailwind

colors: {
  custom: {
    50: '#7258b0',
    500: '#25178e',
    950: '#000000',
  },
}

SCSS

$custom: #25178e;
$custom-light: #7258b0;
$custom-dark: #000000;

JSON

{
  "hex": "#25178e",
  "rgb": {
    "r": 37,
    "g": 23,
    "b": 142
  },
  "hsl": {
    "h": 247.059,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.32886,
    "c": 0.17993,
    "h": 275.3
  },
  "luminance": 0.02959
}

Semantic roles & 50–950 ramp

primary

#25178E

secondary

#B1C040

accent

#EF39D9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #25178E

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

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