#21209B#21209B

#21209B is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.3% C 0.189 H 271.5°. Best body text is #FFFFFF at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#21209B
RGB	rgb(33, 32, 155)
HSL	hsl(240, 66%, 37%)
HSV	hsv(240, 79%, 61%)
CMYK	cmyk(78.7%, 79.4%, 0%, 39.2%)
CIE-LAB	lab(22.73, 43.22, -65.29)
CIE-LCH	lch(22.73, 78.30, 303.50°)
OKLab	oklab(35.25% 0.005 -0.189)
OKLCH	oklch(35.25% 0.189 271.5)
XYZ	xyz(7.0581, 3.7221, 31.3505)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21209B #9A9B20

analogous

#205D9B #21209B #5F209B

triadic

#21209B #9B2120 #209B21

tetradic

#21209B #9B205D #9A9B20 #209B5F

square

#21209B #9B205D #9A9B20 #209B5F

split-complementary

#21209B #9B5F20 #5D9B20

monochromatic

#0B0B36 #161668 #21209B #2C2ACE #5A59DD

Accessibility & contrast

On white

12.04

#21209B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#21209B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21209B

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21209B	#FFFFFF	#000000	##FFFFFF
##21209B	1.00	12.04	1.74	12.04
#FFFFFF	12.04	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9E

Deuteranopia (green-blind)

#003099

Tritanopia (blue-blind)

#00465D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #21209b;
/* rgb */ color: rgb(33, 32, 155);
/* oklch */ color: oklch(35.3% 0.189 271.5);

Tailwind

colors: {
  custom: {
    50: '#735eba',
    500: '#21209b',
    950: '#000000',
  },
}

SCSS

$custom: #21209b;
$custom-light: #735eba;
$custom-dark: #000000;

JSON

{
  "hex": "#21209b",
  "rgb": {
    "r": 33,
    "g": 32,
    "b": 155
  },
  "hsl": {
    "h": 240.488,
    "s": 65.775,
    "l": 36.667
  },
  "oklch": {
    "l": 0.35253,
    "c": 0.18908,
    "h": 271.5
  },
  "luminance": 0.03723
}

Semantic roles & 50–950 ramp

primary

#21209B

secondary

#C0C156

accent

#E93FE7

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #21209B

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

Preview Lab → · Contrast checker → · Palette generator →