#21455F#21455F

#21455F is a dark, moderate cyan. Relative luminance 0.054; OKLCH L 37.6% C 0.061 H 242.2°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#21455F
RGB	rgb(33, 69, 95)
HSL	hsl(205, 48%, 25%)
HSV	hsv(205, 65%, 37%)
CMYK	cmyk(65.3%, 27.4%, 0%, 62.7%)
CIE-LAB	lab(27.86, -3.98, -19.23)
CIE-LCH	lch(27.86, 19.64, 258.31°)
OKLab	oklab(37.62% -0.0285 -0.054)
OKLCH	oklch(37.62% 0.061 242.2)
XYZ	xyz(4.8201, 5.4053, 11.6136)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21455F #5F3B21

analogous

#215F5A #21455F #21265F

triadic

#21455F #5F2145 #455F21

tetradic

#21455F #5A215F #5F3B21 #265F21

square

#21455F #5A215F #5F3B21 #265F21

split-complementary

#21455F #5F2126 #5F5A21

monochromatic

#081017 #112432 #21455F #31668C #4187BA

Accessibility & contrast

On white

10.09

#21455F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#21455F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21455F

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21455F	#FFFFFF	#000000	##FFFFFF
##21455F	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#394560

Deuteranopia (green-blind)

#313F5F

Tritanopia (blue-blind)

#004B4E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #21455f;
/* rgb */ color: rgb(33, 69, 95);
/* oklch */ color: oklch(37.6% 0.061 242.2);

Tailwind

colors: {
  custom: {
    50: '#63788c',
    500: '#21455f',
    950: '#000000',
  },
}

SCSS

$custom: #21455f;
$custom-light: #63788c;
$custom-dark: #000000;

JSON

{
  "hex": "#21455f",
  "rgb": {
    "r": 33,
    "g": 69,
    "b": 95
  },
  "hsl": {
    "h": 205.161,
    "s": 48.438,
    "l": 25.098
  },
  "oklch": {
    "l": 0.37618,
    "c": 0.06105,
    "h": 242.2
  },
  "luminance": 0.05406
}

Semantic roles & 50–950 ramp

primary

#21455F

secondary

#936849

accent

#8950D8

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#06090C

muted

#7A7B7D

Preview Lab

Preview with #21455F

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

Preview Lab → · Contrast checker → · Palette generator →