#251CAA#251CAA

#251CAA is a dark, highly saturated blue. Relative luminance 0.041; OKLCH L 36.8% C 0.209 H 272.1°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#251CAA
RGB	rgb(37, 28, 170)
HSL	hsl(244, 72%, 39%)
HSV	hsv(244, 84%, 67%)
CMYK	cmyk(78.2%, 83.5%, 0%, 33.3%)
CIE-LAB	lab(24.08, 50.23, -72.17)
CIE-LCH	lch(24.08, 87.93, 304.84°)
OKLab	oklab(36.77% 0.0075 -0.2088)
OKLCH	oklch(36.77% 0.209 272.1)
XYZ	xyz(8.4315, 4.1252, 38.3743)
Luminance	0.0413 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251CAA #A1AA1C

analogous

#1C5AAA #251CAA #6C1CAA

triadic

#251CAA #AA251C #1CAA25

tetradic

#251CAA #AA1C5A #A1AA1C #1CAA6C

square

#251CAA #AA1C5A #A1AA1C #1CAA6C

split-complementary

#251CAA #AA6C1C #5AAA1C

monochromatic

#0E0B41 #1A1375 #251CAA #3328DC #655CE4

Accessibility & contrast

On white

11.51

#251CAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#251CAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251CAA

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251CAA	#FFFFFF	#000000	##FFFFFF
##251CAA	1.00	11.51	1.83	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040AE

Deuteranopia (green-blind)

#0032A8

Tritanopia (blue-blind)

#004A65

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #251caa;
/* rgb */ color: rgb(37, 28, 170);
/* oklch */ color: oklch(36.8% 0.209 272.1);

Tailwind

colors: {
  custom: {
    50: '#795dc5',
    500: '#251caa',
    950: '#000000',
  },
}

SCSS

$custom: #251caa;
$custom-light: #795dc5;
$custom-dark: #000000;

JSON

{
  "hex": "#251caa",
  "rgb": {
    "r": 37,
    "g": 28,
    "b": 170
  },
  "hsl": {
    "h": 243.803,
    "s": 71.717,
    "l": 38.824
  },
  "oklch": {
    "l": 0.36774,
    "c": 0.20892,
    "h": 272.1
  },
  "luminance": 0.04126
}

Semantic roles & 50–950 ramp

primary

#251CAA

secondary

#C1C85A

accent

#EE39E3

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #251CAA

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

Preview Lab → · Contrast checker → · Palette generator →