#21455D#21455D

#21455D is a dark, muted cyan. Relative luminance 0.054; OKLCH L 37.5% C 0.059 H 240.0°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#21455D
RGB	rgb(33, 69, 93)
HSL	hsl(204, 48%, 25%)
HSV	hsv(204, 65%, 36%)
CMYK	cmyk(64.5%, 25.8%, 0%, 63.5%)
CIE-LAB	lab(27.76, -4.71, -18.09)
CIE-LCH	lch(27.76, 18.70, 255.40°)
OKLab	oklab(37.51% -0.0292 -0.0507)
OKLCH	oklch(37.51% 0.059 240)
XYZ	xyz(4.7304, 5.3694, 11.1409)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21455D #5D3921

analogous

#215D57 #21455D #21275D

triadic

#21455D #5D2145 #455D21

tetradic

#21455D #57215D #5D3921 #275D21

square

#21455D #57215D #5D3921 #275D21

split-complementary

#21455D #5D2127 #5D5721

monochromatic

#081117 #112330 #21455D #31678A #4188B7

Accessibility & contrast

On white

10.13

#21455D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#21455D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21455D

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21455D	#FFFFFF	#000000	##FFFFFF
##21455D	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A455E

Deuteranopia (green-blind)

#323F5D

Tritanopia (blue-blind)

#004B4D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #21455d;
/* rgb */ color: rgb(33, 69, 93);
/* oklch */ color: oklch(37.5% 0.059 240.0);

Tailwind

colors: {
  custom: {
    50: '#63788b',
    500: '#21455d',
    950: '#000000',
  },
}

SCSS

$custom: #21455d;
$custom-light: #63788b;
$custom-dark: #000000;

JSON

{
  "hex": "#21455d",
  "rgb": {
    "r": 33,
    "g": 69,
    "b": 93
  },
  "hsl": {
    "h": 204,
    "s": 47.619,
    "l": 24.706
  },
  "oklch": {
    "l": 0.37509,
    "c": 0.05856,
    "h": 240
  },
  "luminance": 0.0537
}

Semantic roles & 50–950 ramp

primary

#21455D

secondary

#916649

accent

#8651D7

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05090C

muted

#7A7B7D

Preview Lab

Preview with #21455D

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

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