#2D21A5#2D21A5

#2D21A5 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.3% C 0.197 H 275.1°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#2D21A5
RGB	rgb(45, 33, 165)
HSL	hsl(245, 67%, 39%)
HSV	hsv(245, 80%, 65%)
CMYK	cmyk(72.7%, 80%, 0%, 35.3%)
CIE-LAB	lab(24.83, 46.85, -67.88)
CIE-LCH	lch(24.83, 82.48, 304.61°)
OKLab	oklab(37.26% 0.0174 -0.1963)
OKLCH	oklch(37.26% 0.197 275.1)
XYZ	xyz(8.4153, 4.3614, 35.9884)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D21A5 #99A521

analogous

#2157A5 #2D21A5 #6F21A5

triadic

#2D21A5 #A52D21 #21A52D

tetradic

#2D21A5 #A52157 #99A521 #21A56F

square

#2D21A5 #A52157 #99A521 #21A56F

split-complementary

#2D21A5 #A56F21 #57A521

monochromatic

#110D3F #1F1772 #2D21A5 #3D2ED5 #6C61DF

Accessibility & contrast

On white

11.22

#2D21A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#2D21A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D21A5

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D21A5	#FFFFFF	#000000	##FFFFFF
##2D21A5	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A9

Deuteranopia (green-blind)

#0035A3

Tritanopia (blue-blind)

#004A63

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2d21a5;
/* rgb */ color: rgb(45, 33, 165);
/* oklch */ color: oklch(37.3% 0.197 275.1);

Tailwind

colors: {
  custom: {
    50: '#7a60c1',
    500: '#2d21a5',
    950: '#000000',
  },
}

SCSS

$custom: #2d21a5;
$custom-light: #7a60c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2d21a5",
  "rgb": {
    "r": 45,
    "g": 33,
    "b": 165
  },
  "hsl": {
    "h": 245.455,
    "s": 66.667,
    "l": 38.824
  },
  "oklch": {
    "l": 0.37262,
    "c": 0.19706,
    "h": 275.1
  },
  "luminance": 0.04362
}

Semantic roles & 50–950 ramp

primary

#2D21A5

secondary

#BBC45E

accent

#EA3EDA

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #2D21A5

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

Preview Lab → · Contrast checker → · Palette generator →