#21277D#21277D

#21277D is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.1% C 0.143 H 272.6°. Best body text is #FFFFFF at 12.72:1 contrast (WCAG AA passes).

Color values

HEX	#21277D
RGB	rgb(33, 39, 125)
HSL	hsl(236, 58%, 31%)
HSV	hsv(236, 74%, 49%)
CMYK	cmyk(73.6%, 68.8%, 0%, 51%)
CIE-LAB	lab(21.04, 28.37, -49.38)
CIE-LCH	lch(21.04, 56.95, 299.88°)
OKLab	oklab(33.09% 0.0064 -0.1427)
OKLCH	oklch(33.09% 0.143 272.6)
XYZ	xyz(5.0531, 3.2545, 19.7599)
Luminance	0.0326 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21277D #7D7721

analogous

#21557D #21277D #49217D

triadic

#21277D #7D2127 #277D21

tetradic

#21277D #7D2155 #7D7721 #217D49

square

#21277D #7D2155 #7D7721 #217D49

split-complementary

#21277D #7D4921 #557D21

monochromatic

#07091C #14184D #21277D #2E36AD #4952CF

Accessibility & contrast

On white

12.72

#21277D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#21277D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21277D

12.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21277D	#FFFFFF	#000000	##FFFFFF
##21277D	1.00	12.72	1.65	12.72
#FFFFFF	12.72	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003780

Deuteranopia (green-blind)

#002E7B

Tritanopia (blue-blind)

#003E4E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #21277d;
/* rgb */ color: rgb(33, 39, 125);
/* oklch */ color: oklch(33.1% 0.143 272.6);

Tailwind

colors: {
  custom: {
    50: '#6b61a4',
    500: '#21277d',
    950: '#000000',
  },
}

SCSS

$custom: #21277d;
$custom-light: #6b61a4;
$custom-dark: #000000;

JSON

{
  "hex": "#21277d",
  "rgb": {
    "r": 33,
    "g": 39,
    "b": 125
  },
  "hsl": {
    "h": 236.087,
    "s": 58.228,
    "l": 30.98
  },
  "oklch": {
    "l": 0.33085,
    "c": 0.14284,
    "h": 272.6
  },
  "luminance": 0.03255
}

Semantic roles & 50–950 ramp

primary

#21277D

secondary

#B0A94A

accent

#D746E1

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#08050F

muted

#7A797F

Preview Lab

Preview with #21277D

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

Preview Lab → · Contrast checker → · Palette generator →