#21299B#21299B

#21299B is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.5% C 0.180 H 270.5°. Best body text is #FFFFFF at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#21299B
RGB	rgb(33, 41, 155)
HSL	hsl(236, 65%, 37%)
HSV	hsv(236, 79%, 61%)
CMYK	cmyk(78.7%, 73.5%, 0%, 39.2%)
CIE-LAB	lab(24.56, 38.04, -62.26)
CIE-LCH	lch(24.56, 72.96, 301.42°)
OKLab	oklab(36.55% 0.0015 -0.1803)
OKLCH	oklch(36.55% 0.18 270.5)
XYZ	xyz(7.3345, 4.2750, 31.4426)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21299B #9B9321

analogous

#21669B #21299B #56219B

triadic

#21299B #9B2129 #299B21

tetradic

#21299B #9B2166 #9B9321 #219B56

square

#21299B #9B2166 #9B9321 #219B56

split-complementary

#21299B #9B5621 #669B21

monochromatic

#0C0E36 #161C69 #21299B #2C36CD #5A63DC

Accessibility & contrast

On white

11.32

#21299B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#21299B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21299B

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21299B	#FFFFFF	#000000	##FFFFFF
##21299B	1.00	11.32	1.86	11.32
#FFFFFF	11.32	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00409E

Deuteranopia (green-blind)

#003499

Tritanopia (blue-blind)

#004A5F

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #21299b;
/* rgb */ color: rgb(33, 41, 155);
/* oklch */ color: oklch(36.5% 0.180 270.5);

Tailwind

colors: {
  custom: {
    50: '#7264ba',
    500: '#21299b',
    950: '#000000',
  },
}

SCSS

$custom: #21299b;
$custom-light: #7264ba;
$custom-dark: #000000;

JSON

{
  "hex": "#21299b",
  "rgb": {
    "r": 33,
    "g": 41,
    "b": 155
  },
  "hsl": {
    "h": 236.066,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.3655,
    "c": 0.18031,
    "h": 270.5
  },
  "luminance": 0.04276
}

Semantic roles & 50–950 ramp

primary

#21299B

secondary

#C0B958

accent

#DD40E8

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090512

muted

#7B7A81

Preview Lab

Preview with #21299B

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

Preview Lab → · Contrast checker → · Palette generator →