#21287F#21287F

#21287F is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.5% C 0.144 H 272.2°. Best body text is #FFFFFF at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#21287F
RGB	rgb(33, 40, 127)
HSL	hsl(236, 59%, 31%)
HSV	hsv(236, 74%, 50%)
CMYK	cmyk(74%, 68.5%, 0%, 50.2%)
CIE-LAB	lab(21.48, 28.46, -49.92)
CIE-LCH	lch(21.48, 57.46, 299.68°)
OKLab	oklab(33.47% 0.0055 -0.1443)
OKLCH	oklch(33.47% 0.144 272.2)
XYZ	xyz(5.2155, 3.3727, 20.4507)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21287F #7F7821

analogous

#21577F #21287F #49217F

triadic

#21287F #7F2128 #287F21

tetradic

#21287F #7F2157 #7F7821 #217F49

square

#21287F #7F2157 #7F7821 #217F49

split-complementary

#21287F #7F4921 #577F21

monochromatic

#08091E #14194E #21287F #2E37B0 #4A54D0

Accessibility & contrast

On white

12.54

#21287F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#21287F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21287F

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21287F	#FFFFFF	#000000	##FFFFFF
##21287F	1.00	12.54	1.67	12.54
#FFFFFF	12.54	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003882

Deuteranopia (green-blind)

#002F7D

Tritanopia (blue-blind)

#003F50

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #21287f;
/* rgb */ color: rgb(33, 40, 127);
/* oklch */ color: oklch(33.5% 0.144 272.2);

Tailwind

colors: {
  custom: {
    50: '#6b62a5',
    500: '#21287f',
    950: '#000000',
  },
}

SCSS

$custom: #21287f;
$custom-light: #6b62a5;
$custom-dark: #000000;

JSON

{
  "hex": "#21287f",
  "rgb": {
    "r": 33,
    "g": 40,
    "b": 127
  },
  "hsl": {
    "h": 235.532,
    "s": 58.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.33466,
    "c": 0.14438,
    "h": 272.2
  },
  "luminance": 0.03373
}

Semantic roles & 50–950 ramp

primary

#21287F

secondary

#B2AA4A

accent

#D646E2

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#08050F

muted

#7A797F

Preview Lab

Preview with #21287F

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

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