#2D21BB#2D21BB

#2D21BB is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.8% C 0.223 H 273.0°. Best body text is #FFFFFF at 10.26:1 contrast (WCAG AA passes).

Color values

HEX	#2D21BB
RGB	rgb(45, 33, 187)
HSL	hsl(245, 70%, 43%)
HSV	hsv(245, 82%, 73%)
CMYK	cmyk(75.9%, 82.4%, 0%, 26.7%)
CIE-LAB	lab(27.39, 53.61, -76.83)
CIE-LCH	lch(27.39, 93.69, 304.90°)
OKLab	oklab(39.78% 0.0118 -0.2222)
OKLCH	oklch(39.78% 0.223 273)
XYZ	xyz(10.5927, 5.2323, 47.4558)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D21BB #AFBB21

analogous

#2162BB #2D21BB #7A21BB

triadic

#2D21BB #BB2D21 #21BB2D

tetradic

#2D21BB #BB2162 #AFBB21 #21BB7A

square

#2D21BB #BB2162 #AFBB21 #21BB7A

split-complementary

#2D21BB #BB7A21 #62BB21

monochromatic

#140F53 #201887 #2D21BB #493DDD #7A71E6

Accessibility & contrast

On white

10.26

#2D21BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#2D21BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D21BB

10.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D21BB	#FFFFFF	#000000	##FFFFFF
##2D21BB	1.00	10.26	2.05	10.26
#FFFFFF	10.26	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048BF

Deuteranopia (green-blind)

#0039B8

Tritanopia (blue-blind)

#005370

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2d21bb;
/* rgb */ color: rgb(45, 33, 187);
/* oklch */ color: oklch(39.8% 0.223 273.0);

Tailwind

colors: {
  custom: {
    50: '#7f61d1',
    500: '#2d21bb',
    950: '#000000',
  },
}

SCSS

$custom: #2d21bb;
$custom-light: #7f61d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2d21bb",
  "rgb": {
    "r": 45,
    "g": 33,
    "b": 187
  },
  "hsl": {
    "h": 244.675,
    "s": 70,
    "l": 43.137
  },
  "oklch": {
    "l": 0.39777,
    "c": 0.22256,
    "h": 273
  },
  "luminance": 0.05233
}

Semantic roles & 50–950 ramp

primary

#2D21BB

secondary

#C5CC6B

accent

#ED3BDF

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0514

muted

#7D7A83

Preview Lab

Preview with #2D21BB

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

Preview Lab → · Contrast checker → · Palette generator →