#21239B#21239B

#21239B is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.7% C 0.186 H 271.2°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX	#21239B
RGB	rgb(33, 35, 155)
HSL	hsl(239, 65%, 37%)
HSV	hsv(239, 79%, 61%)
CMYK	cmyk(78.7%, 77.4%, 0%, 39.2%)
CIE-LAB	lab(23.31, 41.56, -64.33)
CIE-LCH	lch(23.31, 76.59, 302.87°)
OKLab	oklab(35.66% 0.004 -0.1863)
OKLCH	oklch(35.66% 0.186 271.2)
XYZ	xyz(7.1426, 3.8912, 31.3786)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21239B #9B9921

analogous

#21609B #21239B #5C219B

triadic

#21239B #9B2123 #239B21

tetradic

#21239B #9B2160 #9B9921 #219B5C

square

#21239B #9B2160 #9B9921 #219B5C

split-complementary

#21239B #9B5C21 #609B21

monochromatic

#0C0C36 #161869 #21239B #2C2ECD #5A5DDC

Accessibility & contrast

On white

11.81

#21239B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#21239B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21239B

11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21239B	#FFFFFF	#000000	##FFFFFF
##21239B	1.00	11.81	1.78	11.81
#FFFFFF	11.81	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E9E

Deuteranopia (green-blind)

#003199

Tritanopia (blue-blind)

#00475E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #21239b;
/* rgb */ color: rgb(33, 35, 155);
/* oklch */ color: oklch(35.7% 0.186 271.2);

Tailwind

colors: {
  custom: {
    50: '#7360ba',
    500: '#21239b',
    950: '#000000',
  },
}

SCSS

$custom: #21239b;
$custom-light: #7360ba;
$custom-dark: #000000;

JSON

{
  "hex": "#21239b",
  "rgb": {
    "r": 33,
    "g": 35,
    "b": 155
  },
  "hsl": {
    "h": 239.016,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.3566,
    "c": 0.18631,
    "h": 271.2
  },
  "luminance": 0.03892
}

Semantic roles & 50–950 ramp

primary

#21239B

secondary

#C0BE58

accent

#E540E8

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #21239B

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

Preview Lab → · Contrast checker → · Palette generator →