#2F21BB#2F21BB

#2F21BB is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 39.9% C 0.222 H 273.7°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#2F21BB
RGB	rgb(47, 33, 187)
HSL	hsl(245, 70%, 43%)
HSV	hsv(245, 82%, 73%)
CMYK	cmyk(74.9%, 82.4%, 0%, 26.7%)
CIE-LAB	lab(27.51, 53.73, -76.62)
CIE-LCH	lch(27.51, 93.58, 305.04°)
OKLab	oklab(39.9% 0.0143 -0.2216)
OKLCH	oklch(39.9% 0.222 273.7)
XYZ	xyz(10.6828, 5.2788, 47.4600)
Luminance	0.0528 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F21BB #ADBB21

analogous

#2160BB #2F21BB #7C21BB

triadic

#2F21BB #BB2F21 #21BB2F

tetradic

#2F21BB #BB2160 #ADBB21 #21BB7C

square

#2F21BB #BB2160 #ADBB21 #21BB7C

split-complementary

#2F21BB #BB7C21 #60BB21

monochromatic

#150F53 #221887 #2F21BB #4B3DDD #7B71E6

Accessibility & contrast

On white

10.21

#2F21BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#2F21BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F21BB

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F21BB	#FFFFFF	#000000	##FFFFFF
##2F21BB	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048BF

Deuteranopia (green-blind)

#003AB8

Tritanopia (blue-blind)

#005270

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2f21bb;
/* rgb */ color: rgb(47, 33, 187);
/* oklch */ color: oklch(39.9% 0.222 273.7);

Tailwind

colors: {
  custom: {
    50: '#8062d1',
    500: '#2f21bb',
    950: '#000000',
  },
}

SCSS

$custom: #2f21bb;
$custom-light: #8062d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f21bb",
  "rgb": {
    "r": 47,
    "g": 33,
    "b": 187
  },
  "hsl": {
    "h": 245.455,
    "s": 70,
    "l": 43.137
  },
  "oklch": {
    "l": 0.39899,
    "c": 0.22205,
    "h": 273.7
  },
  "luminance": 0.0528
}

Semantic roles & 50–950 ramp

primary

#2F21BB

secondary

#C4CC6B

accent

#ED3BDD

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0514

muted

#7D7A83

Preview Lab

Preview with #2F21BB

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

Preview Lab → · Contrast checker → · Palette generator →