#21299D#21299D

#21299D is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.8% C 0.183 H 270.4°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#21299D
RGB	rgb(33, 41, 157)
HSL	hsl(236, 65%, 37%)
HSV	hsv(236, 79%, 62%)
CMYK	cmyk(79%, 73.9%, 0%, 38.4%)
CIE-LAB	lab(24.77, 38.75, -63.13)
CIE-LCH	lch(24.77, 74.08, 301.54°)
OKLab	oklab(36.77% 0.0012 -0.1828)
OKLCH	oklch(36.77% 0.183 270.4)
XYZ	xyz(7.5039, 4.3427, 32.3345)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21299D #9D9521

analogous

#21679D #21299D #57219D

triadic

#21299D #9D2129 #299D21

tetradic

#21299D #9D2167 #9D9521 #219D57

square

#21299D #9D2167 #9D9521 #219D57

split-complementary

#21299D #9D5721 #679D21

monochromatic

#0C0F38 #161C6A #21299D #2C36D0 #5C64DD

Accessibility & contrast

On white

11.24

#21299D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#21299D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21299D

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21299D	#FFFFFF	#000000	##FFFFFF
##21299D	1.00	11.24	1.87	11.24
#FFFFFF	11.24	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A0

Deuteranopia (green-blind)

#00359B

Tritanopia (blue-blind)

#004A60

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #21299d;
/* rgb */ color: rgb(33, 41, 157);
/* oklch */ color: oklch(36.8% 0.183 270.4);

Tailwind

colors: {
  custom: {
    50: '#7364bb',
    500: '#21299d',
    950: '#000000',
  },
}

SCSS

$custom: #21299d;
$custom-light: #7364bb;
$custom-dark: #000000;

JSON

{
  "hex": "#21299d",
  "rgb": {
    "r": 33,
    "g": 41,
    "b": 157
  },
  "hsl": {
    "h": 236.129,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.36766,
    "c": 0.18284,
    "h": 270.4
  },
  "luminance": 0.04344
}

Semantic roles & 50–950 ramp

primary

#21299D

secondary

#C1BA59

accent

#DD40E8

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #21299D

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

Preview Lab → · Contrast checker → · Palette generator →