#21428F#21428F

#21428F is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.2% C 0.134 H 263.9°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#21428F
RGB	rgb(33, 66, 143)
HSL	hsl(222, 63%, 35%)
HSV	hsv(222, 77%, 56%)
CMYK	cmyk(76.9%, 53.8%, 0%, 43.9%)
CIE-LAB	lab(29.92, 16.84, -46.14)
CIE-LCH	lch(29.92, 49.12, 290.05°)
OKLab	oklab(40.18% -0.0142 -0.1329)
OKLCH	oklch(40.18% 0.134 263.9)
XYZ	xyz(7.5316, 6.2021, 26.7815)
Luminance	0.0620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21428F #8F6E21

analogous

#21798F #21428F #37218F

triadic

#21428F #8F2142 #428F21

tetradic

#21428F #8F2179 #8F6E21 #218F37

square

#21428F #8F2179 #8F6E21 #218F37

split-complementary

#21428F #8F3721 #798F21

monochromatic

#0A142C #162B5D #21428F #2C59C1 #537BD7

Accessibility & contrast

On white

9.37

#21428F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#21428F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21428F

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21428F	#FFFFFF	#000000	##FFFFFF
##21428F	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B4C92

Deuteranopia (green-blind)

#00428D

Tritanopia (blue-blind)

#005562

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #21428f;
/* rgb */ color: rgb(33, 66, 143);
/* oklch */ color: oklch(40.2% 0.134 263.9);

Tailwind

colors: {
  custom: {
    50: '#6d75b0',
    500: '#21428f',
    950: '#000000',
  },
}

SCSS

$custom: #21428f;
$custom-light: #6d75b0;
$custom-dark: #000000;

JSON

{
  "hex": "#21428f",
  "rgb": {
    "r": 33,
    "g": 66,
    "b": 143
  },
  "hsl": {
    "h": 222,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.40177,
    "c": 0.13362,
    "h": 263.9
  },
  "luminance": 0.06203
}

Semantic roles & 50–950 ramp

primary

#21428F

secondary

#BB9B51

accent

#B542E6

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080811

muted

#7B7B80

Preview Lab

Preview with #21428F

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

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