#21506B#21506B

#21506B is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.2% C 0.068 H 236.9°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#21506B
RGB	rgb(33, 80, 107)
HSL	hsl(202, 53%, 27%)
HSV	hsv(202, 69%, 42%)
CMYK	cmyk(69.2%, 25.2%, 0%, 58%)
CIE-LAB	lab(32.08, -6.53, -20.30)
CIE-LCH	lch(32.08, 21.32, 252.16°)
OKLab	oklab(41.16% -0.0371 -0.057)
OKLCH	oklch(41.16% 0.068 236.9)
XYZ	xyz(6.1487, 7.1216, 14.9576)
Luminance	0.0712 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21506B #6B3C21

analogous

#216B61 #21506B #212B6B

triadic

#21506B #6B2150 #506B21

tetradic

#21506B #61216B #6B3C21 #2B6B21

square

#21506B #61216B #6B3C21 #2B6B21

split-complementary

#21506B #6B212B #6B6121

monochromatic

#071117 #132D3C #21506B #2F739A #4295C5

Accessibility & contrast

On white

8.66

#21506B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#21506B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21506B

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21506B	#FFFFFF	#000000	##FFFFFF
##21506B	1.00	8.66	2.42	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43506C

Deuteranopia (green-blind)

#39486B

Tritanopia (blue-blind)

#005759

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #21506b;
/* rgb */ color: rgb(33, 80, 107);
/* oklch */ color: oklch(41.2% 0.068 236.9);

Tailwind

colors: {
  custom: {
    50: '#658195',
    500: '#21506b',
    950: '#000000',
  },
}

SCSS

$custom: #21506b;
$custom-light: #658195;
$custom-dark: #000000;

JSON

{
  "hex": "#21506b",
  "rgb": {
    "r": 33,
    "g": 80,
    "b": 107
  },
  "hsl": {
    "h": 201.892,
    "s": 52.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.41155,
    "c": 0.06803,
    "h": 236.9
  },
  "luminance": 0.07122
}

Semantic roles & 50–950 ramp

primary

#21506B

secondary

#9F6849

accent

#804CDC

background

#F6F7F9

surface

#EBEEF1

border

#C6C9CB

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #21506B

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

Preview Lab → · Contrast checker → · Palette generator →