#21428A#21428A

#21428A is a dark, vivid blue. Relative luminance 0.061; OKLCH L 39.8% C 0.126 H 263.3°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#21428A
RGB	rgb(33, 66, 138)
HSL	hsl(221, 61%, 34%)
HSV	hsv(221, 76%, 54%)
CMYK	cmyk(76.1%, 52.2%, 0%, 45.9%)
CIE-LAB	lab(29.55, 14.85, -43.66)
CIE-LCH	lch(29.55, 46.12, 288.79°)
OKLab	oklab(39.78% -0.0148 -0.1255)
OKLCH	oklch(39.78% 0.126 263.3)
XYZ	xyz(7.1612, 6.0540, 24.8309)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21428A #8A6921

analogous

#21768A #21428A #34218A

triadic

#21428A #8A2142 #428A21

tetradic

#21428A #8A2176 #8A6921 #218A34

square

#21428A #8A2176 #8A6921 #218A34

split-complementary

#21428A #8A3421 #768A21

monochromatic

#091327 #152A59 #21428A #2D5ABB #507AD5

Accessibility & contrast

On white

9.50

#21428A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#21428A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21428A

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21428A	#FFFFFF	#000000	##FFFFFF
##21428A	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154B8D

Deuteranopia (green-blind)

#004189

Tritanopia (blue-blind)

#00535F

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #21428a;
/* rgb */ color: rgb(33, 66, 138);
/* oklch */ color: oklch(39.8% 0.126 263.3);

Tailwind

colors: {
  custom: {
    50: '#6c75ad',
    500: '#21428a',
    950: '#000000',
  },
}

SCSS

$custom: #21428a;
$custom-light: #6c75ad;
$custom-dark: #000000;

JSON

{
  "hex": "#21428a",
  "rgb": {
    "r": 33,
    "g": 66,
    "b": 138
  },
  "hsl": {
    "h": 221.143,
    "s": 61.404,
    "l": 33.529
  },
  "oklch": {
    "l": 0.39779,
    "c": 0.12642,
    "h": 263.3
  },
  "luminance": 0.06055
}

Semantic roles & 50–950 ramp

primary

#21428A

secondary

#B9974E

accent

#B243E5

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #21428A

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

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