#251EA1#251EA1

#251EA1 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.9% C 0.197 H 272.7°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#251EA1
RGB	rgb(37, 30, 161)
HSL	hsl(243, 69%, 37%)
HSV	hsv(243, 81%, 63%)
CMYK	cmyk(77%, 81.4%, 0%, 36.9%)
CIE-LAB	lab(23.32, 46.48, -67.97)
CIE-LCH	lch(23.32, 82.34, 304.36°)
OKLab	oklab(35.93% 0.0091 -0.1967)
OKLCH	oklch(35.93% 0.197 272.7)
XYZ	xyz(7.6581, 3.8943, 34.0594)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251EA1 #9AA11E

analogous

#1E59A1 #251EA1 #661EA1

triadic

#251EA1 #A1251E #1EA125

tetradic

#251EA1 #A11E59 #9AA11E #1EA166

square

#251EA1 #A11E59 #9AA11E #1EA166

split-complementary

#251EA1 #A1661E #59A11E

monochromatic

#0D0B3A #19146D #251EA1 #3128D5 #6059E0

Accessibility & contrast

On white

11.80

#251EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#251EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251EA1

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251EA1	#FFFFFF	#000000	##FFFFFF
##251EA1	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA5

Deuteranopia (green-blind)

#00319F

Tritanopia (blue-blind)

#004760

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #251ea1;
/* rgb */ color: rgb(37, 30, 161);
/* oklch */ color: oklch(35.9% 0.197 272.7);

Tailwind

colors: {
  custom: {
    50: '#765ebe',
    500: '#251ea1',
    950: '#000000',
  },
}

SCSS

$custom: #251ea1;
$custom-light: #765ebe;
$custom-dark: #000000;

JSON

{
  "hex": "#251ea1",
  "rgb": {
    "r": 37,
    "g": 30,
    "b": 161
  },
  "hsl": {
    "h": 243.206,
    "s": 68.586,
    "l": 37.451
  },
  "oklch": {
    "l": 0.35933,
    "c": 0.19689,
    "h": 272.7
  },
  "luminance": 0.03895
}

Semantic roles & 50–950 ramp

primary

#251EA1

secondary

#BEC457

accent

#EB3CE2

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #251EA1

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

Preview Lab → · Contrast checker → · Palette generator →