#21506D#21506D

#21506D is a dark, moderate cyan. Relative luminance 0.072; OKLCH L 41.3% C 0.070 H 238.8°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#21506D
RGB	rgb(33, 80, 109)
HSL	hsl(203, 54%, 28%)
HSV	hsv(203, 70%, 43%)
CMYK	cmyk(69.7%, 26.6%, 0%, 57.3%)
CIE-LAB	lab(32.18, -5.79, -21.40)
CIE-LCH	lch(32.18, 22.18, 254.85°)
OKLab	oklab(41.26% -0.0364 -0.0602)
OKLCH	oklch(41.26% 0.07 238.8)
XYZ	xyz(6.2551, 7.1641, 15.5182)
Luminance	0.0717 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21506D #6D3E21

analogous

#216D64 #21506D #212A6D

triadic

#21506D #6D2150 #506D21

tetradic

#21506D #64216D #6D3E21 #2A6D21

square

#21506D #64216D #6D3E21 #2A6D21

split-complementary

#21506D #6D212A #6D6421

monochromatic

#071117 #132E3E #21506D #2F729C #4294C6

Accessibility & contrast

On white

8.63

#21506D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#21506D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21506D

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21506D	#FFFFFF	#000000	##FFFFFF
##21506D	1.00	8.63	2.43	8.63
#FFFFFF	8.63	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43506E

Deuteranopia (green-blind)

#38486C

Tritanopia (blue-blind)

#00575A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #21506d;
/* rgb */ color: rgb(33, 80, 109);
/* oklch */ color: oklch(41.3% 0.070 238.8);

Tailwind

colors: {
  custom: {
    50: '#668197',
    500: '#21506d',
    950: '#000000',
  },
}

SCSS

$custom: #21506d;
$custom-light: #668197;
$custom-dark: #000000;

JSON

{
  "hex": "#21506d",
  "rgb": {
    "r": 33,
    "g": 80,
    "b": 109
  },
  "hsl": {
    "h": 202.895,
    "s": 53.521,
    "l": 27.843
  },
  "oklch": {
    "l": 0.41262,
    "c": 0.07034,
    "h": 238.8
  },
  "luminance": 0.07165
}

Semantic roles & 50–950 ramp

primary

#21506D

secondary

#A16B49

accent

#834BDD

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #21506D

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

Preview Lab → · Contrast checker → · Palette generator →