#21277B#21277B

#21277B is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.9% C 0.140 H 272.7°. Best body text is #FFFFFF at 12.80:1 contrast (WCAG AA passes).

Color values

HEX	#21277B
RGB	rgb(33, 39, 123)
HSL	hsl(236, 58%, 31%)
HSV	hsv(236, 73%, 48%)
CMYK	cmyk(73.2%, 68.3%, 0%, 51.8%)
CIE-LAB	lab(20.84, 27.62, -48.42)
CIE-LCH	lch(20.84, 55.75, 299.70°)
OKLab	oklab(32.89% 0.0066 -0.1399)
OKLCH	oklch(32.89% 0.14 272.7)
XYZ	xyz(4.9267, 3.2040, 19.0938)
Luminance	0.0320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21277B #7B7521

analogous

#21547B #21277B #48217B

triadic

#21277B #7B2127 #277B21

tetradic

#21277B #7B2154 #7B7521 #217B48

square

#21277B #7B2154 #7B7521 #217B48

split-complementary

#21277B #7B4821 #547B21

monochromatic

#07081A #14184B #21277B #2E36AB #4851CE

Accessibility & contrast

On white

12.80

#21277B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#21277B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21277B

12.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21277B	#FFFFFF	#000000	##FFFFFF
##21277B	1.00	12.80	1.64	12.80
#FFFFFF	12.80	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367E

Deuteranopia (green-blind)

#002E79

Tritanopia (blue-blind)

#003D4D

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #21277b;
/* rgb */ color: rgb(33, 39, 123);
/* oklch */ color: oklch(32.9% 0.140 272.7);

Tailwind

colors: {
  custom: {
    50: '#6a61a2',
    500: '#21277b',
    950: '#000000',
  },
}

SCSS

$custom: #21277b;
$custom-light: #6a61a2;
$custom-dark: #000000;

JSON

{
  "hex": "#21277b",
  "rgb": {
    "r": 33,
    "g": 39,
    "b": 123
  },
  "hsl": {
    "h": 236,
    "s": 57.692,
    "l": 30.588
  },
  "oklch": {
    "l": 0.32885,
    "c": 0.14006,
    "h": 272.7
  },
  "luminance": 0.03204
}

Semantic roles & 50–950 ramp

primary

#21277B

secondary

#AEA74A

accent

#D747E1

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #21277B

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

Preview Lab → · Contrast checker → · Palette generator →