#2F21A4#2F21A4

#2F21A4 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.3% C 0.195 H 276.0°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#2F21A4
RGB	rgb(47, 33, 164)
HSL	hsl(246, 66%, 39%)
HSV	hsv(246, 80%, 64%)
CMYK	cmyk(71.3%, 79.9%, 0%, 35.7%)
CIE-LAB	lab(24.86, 46.71, -67.22)
CIE-LCH	lch(24.86, 81.85, 304.80°)
OKLab	oklab(37.29% 0.0204 -0.1943)
OKLCH	oklch(37.29% 0.195 276)
XYZ	xyz(8.4148, 4.3716, 35.5151)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F21A4 #96A421

analogous

#2154A4 #2F21A4 #7021A4

triadic

#2F21A4 #A42F21 #21A42F

tetradic

#2F21A4 #A42154 #96A421 #21A470

square

#2F21A4 #A42154 #96A421 #21A470

split-complementary

#2F21A4 #A47021 #54A421

monochromatic

#120C3E #201771 #2F21A4 #3F2DD5 #6E60DF

Accessibility & contrast

On white

11.20

#2F21A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#2F21A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F21A4

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F21A4	#FFFFFF	#000000	##FFFFFF
##2F21A4	1.00	11.20	1.87	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040A8

Deuteranopia (green-blind)

#0035A2

Tritanopia (blue-blind)

#004963

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2f21a4;
/* rgb */ color: rgb(47, 33, 164);
/* oklch */ color: oklch(37.3% 0.195 276.0);

Tailwind

colors: {
  custom: {
    50: '#7a60c0',
    500: '#2f21a4',
    950: '#000000',
  },
}

SCSS

$custom: #2f21a4;
$custom-light: #7a60c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f21a4",
  "rgb": {
    "r": 47,
    "g": 33,
    "b": 164
  },
  "hsl": {
    "h": 246.412,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.37289,
    "c": 0.19539,
    "h": 276
  },
  "luminance": 0.04372
}

Semantic roles & 50–950 ramp

primary

#2F21A4

secondary

#B9C45D

accent

#E93ED7

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #2F21A4

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

Preview Lab → · Contrast checker → · Palette generator →