#281780#281780

#281780 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.5% C 0.162 H 278.9°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#281780
RGB	rgb(40, 23, 128)
HSL	hsl(250, 70%, 30%)
HSV	hsv(250, 82%, 50%)
CMYK	cmyk(68.8%, 82%, 0%, 49.8%)
CIE-LAB	lab(18.46, 39.76, -55.50)
CIE-LCH	lch(18.46, 68.27, 305.61°)
OKLab	oklab(31.48% 0.0252 -0.1603)
OKLCH	oklch(31.48% 0.162 278.9)
XYZ	xyz(5.0765, 2.6220, 20.6565)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281780 #6F8017

analogous

#173B80 #281780 #5C1780

triadic

#281780 #802817 #178028

tetradic

#281780 #80173B #6F8017 #17805C

square

#281780 #80173B #6F8017 #17805C

split-complementary

#281780 #805C17 #3B8017

monochromatic

#08051A #180E4C #281780 #3820B4 #5136DB

Accessibility & contrast

On white

13.78

#281780 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#281780 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281780

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281780	#FFFFFF	#000000	##FFFFFF
##281780	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003183

Deuteranopia (green-blind)

#00297E

Tritanopia (blue-blind)

#00374C

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #281780;
/* rgb */ color: rgb(40, 23, 128);
/* oklch */ color: oklch(31.5% 0.162 278.9);

Tailwind

colors: {
  custom: {
    50: '#7058a6',
    500: '#281780',
    950: '#000000',
  },
}

SCSS

$custom: #281780;
$custom-light: #7058a6;
$custom-dark: #000000;

JSON

{
  "hex": "#281780",
  "rgb": {
    "r": 40,
    "g": 23,
    "b": 128
  },
  "hsl": {
    "h": 249.714,
    "s": 69.536,
    "l": 29.608
  },
  "oklch": {
    "l": 0.31483,
    "c": 0.16226,
    "h": 278.9
  },
  "luminance": 0.02622
}

Semantic roles & 50–950 ramp

primary

#281780

secondary

#A1B43E

accent

#EC3BD0

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09030F

muted

#7B787F

Preview Lab

Preview with #281780

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

Preview Lab → · Contrast checker → · Palette generator →