#2820B3#2820B3

#2820B3 is a dark, highly saturated blue. Relative luminance 0.047; OKLCH L 38.4% C 0.215 H 272.1°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#2820B3
RGB	rgb(40, 32, 179)
HSL	hsl(243, 70%, 41%)
HSV	hsv(243, 82%, 70%)
CMYK	cmyk(77.7%, 82.1%, 0%, 29.8%)
CIE-LAB	lab(25.97, 51.32, -74.42)
CIE-LCH	lch(25.97, 90.41, 304.59°)
OKLab	oklab(38.44% 0.0079 -0.2153)
OKLCH	oklch(38.44% 0.215 272.1)
XYZ	xyz(9.5255, 4.7378, 43.0515)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2820B3 #ABB320

analogous

#2062B3 #2820B3 #7220B3

triadic

#2820B3 #B32820 #20B328

tetradic

#2820B3 #B32062 #ABB320 #20B372

square

#2820B3 #B32062 #ABB320 #20B372

split-complementary

#2820B3 #B37220 #62B320

monochromatic

#110D4B #1C177F #2820B3 #3E35DB #7069E4

Accessibility & contrast

On white

10.78

#2820B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#2820B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2820B3

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2820B3	#FFFFFF	#000000	##FFFFFF
##2820B3	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044B7

Deuteranopia (green-blind)

#0036B1

Tritanopia (blue-blind)

#004F6B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2820b3;
/* rgb */ color: rgb(40, 32, 179);
/* oklch */ color: oklch(38.4% 0.215 272.1);

Tailwind

colors: {
  custom: {
    50: '#7b60cb',
    500: '#2820b3',
    950: '#000000',
  },
}

SCSS

$custom: #2820b3;
$custom-light: #7b60cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2820b3",
  "rgb": {
    "r": 40,
    "g": 32,
    "b": 179
  },
  "hsl": {
    "h": 243.265,
    "s": 69.668,
    "l": 41.373
  },
  "oklch": {
    "l": 0.38444,
    "c": 0.21549,
    "h": 272.1
  },
  "luminance": 0.04739
}

Semantic roles & 50–950 ramp

primary

#2820B3

secondary

#C4CA65

accent

#EC3BE3

background

#F8F5FC

surface

#EFEAF9

border

#CAC6D2

text

#0B0514

muted

#7C7982

Preview Lab

Preview with #2820B3

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

Preview Lab → · Contrast checker → · Palette generator →