#251589#251589

#251589 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 32.1% C 0.176 H 276.2°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#251589
RGB	rgb(37, 21, 137)
HSL	hsl(248, 73%, 31%)
HSV	hsv(248, 85%, 54%)
CMYK	cmyk(73%, 84.7%, 0%, 46.3%)
CIE-LAB	lab(18.95, 43.27, -60.38)
CIE-LCH	lch(18.95, 74.28, 305.63°)
OKLab	oklab(32.07% 0.0188 -0.1745)
OKLCH	oklch(32.07% 0.176 276.2)
XYZ	xyz(5.5450, 2.7353, 23.8978)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251589 #798915

analogous

#153F89 #251589 #5F1589

triadic

#251589 #892515 #158925

tetradic

#251589 #89153F #798915 #15895F

square

#251589 #89153F #798915 #15895F

split-complementary

#251589 #895F15 #3F8915

monochromatic

#08051F #170D54 #251589 #331DBE #4F38E0

Accessibility & contrast

On white

13.57

#251589 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#251589 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251589

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251589	#FFFFFF	#000000	##FFFFFF
##251589	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338C

Deuteranopia (green-blind)

#002987

Tritanopia (blue-blind)

#003A51

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #251589;
/* rgb */ color: rgb(37, 21, 137);
/* oklch */ color: oklch(32.1% 0.176 276.2);

Tailwind

colors: {
  custom: {
    50: '#7157ad',
    500: '#251589',
    950: '#000000',
  },
}

SCSS

$custom: #251589;
$custom-light: #7157ad;
$custom-dark: #000000;

JSON

{
  "hex": "#251589",
  "rgb": {
    "r": 37,
    "g": 21,
    "b": 137
  },
  "hsl": {
    "h": 248.276,
    "s": 73.418,
    "l": 30.98
  },
  "oklch": {
    "l": 0.3207,
    "c": 0.17552,
    "h": 276.2
  },
  "luminance": 0.02736
}

Semantic roles & 50–950 ramp

primary

#251589

secondary

#ABBD3D

accent

#F038D7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #251589

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

Preview Lab → · Contrast checker → · Palette generator →