#251EAF#251EAF

#251EAF is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.6% C 0.213 H 271.6°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#251EAF
RGB	rgb(37, 30, 175)
HSL	hsl(243, 71%, 40%)
HSV	hsv(243, 83%, 69%)
CMYK	cmyk(78.9%, 82.9%, 0%, 31.4%)
CIE-LAB	lab(25.00, 50.85, -73.65)
CIE-LCH	lch(25.00, 89.50, 304.62°)
OKLab	oklab(37.59% 0.0058 -0.2131)
OKLCH	oklch(37.59% 0.213 271.6)
XYZ	xyz(8.9625, 4.4160, 40.9291)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251EAF #A8AF1E

analogous

#1E5FAF #251EAF #6E1EAF

triadic

#251EAF #AF251E #1EAF25

tetradic

#251EAF #AF1E5F #A8AF1E #1EAF6E

square

#251EAF #AF1E5F #A8AF1E #1EAF6E

split-complementary

#251EAF #AF6E1E #5FAF1E

monochromatic

#0F0C47 #1A157B #251EAF #372FDB #6963E4

Accessibility & contrast

On white

11.15

#251EAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#251EAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251EAF

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251EAF	#FFFFFF	#000000	##FFFFFF
##251EAF	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042B3

Deuteranopia (green-blind)

#0034AD

Tritanopia (blue-blind)

#004D68

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #251eaf;
/* rgb */ color: rgb(37, 30, 175);
/* oklch */ color: oklch(37.6% 0.213 271.6);

Tailwind

colors: {
  custom: {
    50: '#7a5fc8',
    500: '#251eaf',
    950: '#000000',
  },
}

SCSS

$custom: #251eaf;
$custom-light: #7a5fc8;
$custom-dark: #000000;

JSON

{
  "hex": "#251eaf",
  "rgb": {
    "r": 37,
    "g": 30,
    "b": 175
  },
  "hsl": {
    "h": 242.897,
    "s": 70.732,
    "l": 40.196
  },
  "oklch": {
    "l": 0.37585,
    "c": 0.2132,
    "h": 271.6
  },
  "luminance": 0.04417
}

Semantic roles & 50–950 ramp

primary

#251EAF

secondary

#C4C960

accent

#ED3AE5

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #251EAF

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

Preview Lab → · Contrast checker → · Palette generator →