#221C8A#221C8A

#221C8A is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.8% C 0.172 H 273.9°. Best body text is #FFFFFF at 13.12:1 contrast (WCAG AA passes).

Color values

HEX	#221C8A
RGB	rgb(34, 28, 138)
HSL	hsl(243, 66%, 33%)
HSV	hsv(243, 80%, 54%)
CMYK	cmyk(75.4%, 79.7%, 0%, 45.9%)
CIE-LAB	lab(20.06, 39.81, -59.17)
CIE-LCH	lch(20.06, 71.32, 303.94°)
OKLab	oklab(32.82% 0.0116 -0.1712)
OKLCH	oklch(32.82% 0.172 273.9)
XYZ	xyz(5.6609, 3.0050, 24.3215)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#221C8A #848A1C

analogous

#1C4D8A #221C8A #591C8A

triadic

#221C8A #8A221C #1C8A22

tetradic

#221C8A #8A1C4D #848A1C #1C8A59

square

#221C8A #8A1C4D #848A1C #1C8A59

split-complementary

#221C8A #8A591C #4D8A1C

monochromatic

#090724 #151257 #221C8A #2F26BD #4F47DA

Accessibility & contrast

On white

13.12

#221C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#221C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #221C8A

13.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##221C8A	#FFFFFF	#000000	##FFFFFF
##221C8A	1.00	13.12	1.60	13.12
#FFFFFF	13.12	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358D

Deuteranopia (green-blind)

#002B88

Tritanopia (blue-blind)

#003D52

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #221c8a;
/* rgb */ color: rgb(34, 28, 138);
/* oklch */ color: oklch(32.8% 0.172 273.9);

Tailwind

colors: {
  custom: {
    50: '#705bad',
    500: '#221c8a',
    950: '#000000',
  },
}

SCSS

$custom: #221c8a;
$custom-light: #705bad;
$custom-dark: #000000;

JSON

{
  "hex": "#221c8a",
  "rgb": {
    "r": 34,
    "g": 28,
    "b": 138
  },
  "hsl": {
    "h": 243.273,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.32822,
    "c": 0.17157,
    "h": 273.9
  },
  "luminance": 0.03006
}

Semantic roles & 50–950 ramp

primary

#221C8A

secondary

#B5BB46

accent

#E93FE0

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #221C8A

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

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