#251780#251780

#251780 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.2% C 0.163 H 277.3°. Best body text is #FFFFFF at 13.88:1 contrast (WCAG AA passes).

Color values

HEX	#251780
RGB	rgb(37, 23, 128)
HSL	hsl(248, 70%, 30%)
HSV	hsv(248, 82%, 50%)
CMYK	cmyk(71.1%, 82%, 0%, 49.8%)
CIE-LAB	lab(18.21, 39.46, -55.93)
CIE-LCH	lch(18.21, 68.45, 305.20°)
OKLab	oklab(31.24% 0.0207 -0.1616)
OKLCH	oklch(31.24% 0.163 277.3)
XYZ	xyz(4.9644, 2.5642, 20.6512)
Luminance	0.0256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251780 #728017

analogous

#173E80 #251780 #5A1780

triadic

#251780 #802517 #178025

tetradic

#251780 #80173E #728017 #17805A

square

#251780 #80173E #728017 #17805A

split-complementary

#251780 #805A17 #3E8017

monochromatic

#07051A #160E4C #251780 #3420B4 #4C36DB

Accessibility & contrast

On white

13.88

#251780 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#251780 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251780

13.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251780	#FFFFFF	#000000	##FFFFFF
##251780	1.00	13.88	1.51	13.88
#FFFFFF	13.88	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003183

Deuteranopia (green-blind)

#00287E

Tritanopia (blue-blind)

#00374C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #251780;
/* rgb */ color: rgb(37, 23, 128);
/* oklch */ color: oklch(31.2% 0.163 277.3);

Tailwind

colors: {
  custom: {
    50: '#6f57a6',
    500: '#251780',
    950: '#000000',
  },
}

SCSS

$custom: #251780;
$custom-light: #6f57a6;
$custom-dark: #000000;

JSON

{
  "hex": "#251780",
  "rgb": {
    "r": 37,
    "g": 23,
    "b": 128
  },
  "hsl": {
    "h": 248,
    "s": 69.536,
    "l": 29.608
  },
  "oklch": {
    "l": 0.31241,
    "c": 0.16295,
    "h": 277.3
  },
  "luminance": 0.02565
}

Semantic roles & 50–950 ramp

primary

#251780

secondary

#A5B43E

accent

#EC3BD5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #251780

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

Preview Lab → · Contrast checker → · Palette generator →