#251CA8#251CA8

#251CA8 is a dark, highly saturated blue. Relative luminance 0.041; OKLCH L 36.5% C 0.207 H 272.2°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#251CA8
RGB	rgb(37, 28, 168)
HSL	hsl(244, 71%, 38%)
HSV	hsv(244, 83%, 66%)
CMYK	cmyk(78%, 83.3%, 0%, 34.1%)
CIE-LAB	lab(23.84, 49.62, -71.36)
CIE-LCH	lch(23.84, 86.92, 304.81°)
OKLab	oklab(36.54% 0.008 -0.2065)
OKLCH	oklch(36.54% 0.207 272.2)
XYZ	xyz(8.2437, 4.0501, 37.3855)
Luminance	0.0405 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251CA8 #9FA81C

analogous

#1C59A8 #251CA8 #6B1CA8

triadic

#251CA8 #A8251C #1CA825

tetradic

#251CA8 #A81C59 #9FA81C #1CA86B

square

#251CA8 #A81C59 #9FA81C #1CA86B

split-complementary

#251CA8 #A86B1C #59A81C

monochromatic

#0E0B3F #191374 #251CA8 #3226DB #645BE4

Accessibility & contrast

On white

11.60

#251CA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#251CA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251CA8

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251CA8	#FFFFFF	#000000	##FFFFFF
##251CA8	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FAC

Deuteranopia (green-blind)

#0032A6

Tritanopia (blue-blind)

#004964

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #251ca8;
/* rgb */ color: rgb(37, 28, 168);
/* oklch */ color: oklch(36.5% 0.207 272.2);

Tailwind

colors: {
  custom: {
    50: '#785dc3',
    500: '#251ca8',
    950: '#000000',
  },
}

SCSS

$custom: #251ca8;
$custom-light: #785dc3;
$custom-dark: #000000;

JSON

{
  "hex": "#251ca8",
  "rgb": {
    "r": 37,
    "g": 28,
    "b": 168
  },
  "hsl": {
    "h": 243.857,
    "s": 71.429,
    "l": 38.431
  },
  "oklch": {
    "l": 0.36535,
    "c": 0.20662,
    "h": 272.2
  },
  "luminance": 0.04051
}

Semantic roles & 50–950 ramp

primary

#251CA8

secondary

#C0C758

accent

#EE3AE3

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #251CA8

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

Preview Lab → · Contrast checker → · Palette generator →