#21287E#21287E

#21287E is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.4% C 0.143 H 272.2°. Best body text is #FFFFFF at 12.58:1 contrast (WCAG AA passes).

Color values

HEX	#21287E
RGB	rgb(33, 40, 126)
HSL	hsl(235, 58%, 31%)
HSV	hsv(235, 74%, 49%)
CMYK	cmyk(73.8%, 68.3%, 0%, 50.6%)
CIE-LAB	lab(21.38, 28.08, -49.44)
CIE-LCH	lch(21.38, 56.86, 299.59°)
OKLab	oklab(33.37% 0.0056 -0.1429)
OKLCH	oklch(33.37% 0.143 272.2)
XYZ	xyz(5.1506, 3.3468, 20.1092)
Luminance	0.0335 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21287E #7E7721

analogous

#21567E #21287E #48217E

triadic

#21287E #7E2128 #287E21

tetradic

#21287E #7E2156 #7E7721 #217E48

square

#21287E #7E2156 #7E7721 #217E48

split-complementary

#21287E #7E4821 #567E21

monochromatic

#08091D #14194E #21287E #2E37AE #4A54D0

Accessibility & contrast

On white

12.58

#21287E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#21287E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21287E

12.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21287E	#FFFFFF	#000000	##FFFFFF
##21287E	1.00	12.58	1.67	12.58
#FFFFFF	12.58	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003881

Deuteranopia (green-blind)

#002F7C

Tritanopia (blue-blind)

#003F4F

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #21287e;
/* rgb */ color: rgb(33, 40, 126);
/* oklch */ color: oklch(33.4% 0.143 272.2);

Tailwind

colors: {
  custom: {
    50: '#6b62a4',
    500: '#21287e',
    950: '#000000',
  },
}

SCSS

$custom: #21287e;
$custom-light: #6b62a4;
$custom-dark: #000000;

JSON

{
  "hex": "#21287e",
  "rgb": {
    "r": 33,
    "g": 40,
    "b": 126
  },
  "hsl": {
    "h": 235.484,
    "s": 58.491,
    "l": 31.176
  },
  "oklch": {
    "l": 0.33367,
    "c": 0.143,
    "h": 272.2
  },
  "luminance": 0.03347
}

Semantic roles & 50–950 ramp

primary

#21287E

secondary

#B1A94A

accent

#D646E2

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#08050F

muted

#7A797F

Preview Lab

Preview with #21287E

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

Preview Lab → · Contrast checker → · Palette generator →