#21576E#21576E

#21576E is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.1% C 0.068 H 229.4°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#21576E
RGB	rgb(33, 87, 110)
HSL	hsl(198, 54%, 28%)
HSV	hsv(198, 70%, 43%)
CMYK	cmyk(70%, 20.9%, 0%, 56.9%)
CIE-LAB	lab(34.53, -9.73, -18.38)
CIE-LCH	lch(34.53, 20.80, 242.11°)
OKLab	oklab(43.15% -0.044 -0.0515)
OKLCH	oklch(43.15% 0.068 229.4)
XYZ	xyz(6.8488, 8.2648, 15.9831)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21576E #6E3821

analogous

#216E5E #21576E #21306E

triadic

#21576E #6E2157 #576E21

tetradic

#21576E #5E216E #6E3821 #306E21

square

#21576E #5E216E #6E3821 #306E21

split-complementary

#21576E #6E2130 #6E5E21

monochromatic

#071318 #13323F #21576E #2F7C9D #439FC7

Accessibility & contrast

On white

7.91

#21576E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#21576E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21576E

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21576E	#FFFFFF	#000000	##FFFFFF
##21576E	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B566F

Deuteranopia (green-blind)

#414E6E

Tritanopia (blue-blind)

#005D5F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #21576e;
/* rgb */ color: rgb(33, 87, 110);
/* oklch */ color: oklch(43.1% 0.068 229.4);

Tailwind

colors: {
  custom: {
    50: '#668697',
    500: '#21576e',
    950: '#000000',
  },
}

SCSS

$custom: #21576e;
$custom-light: #668697;
$custom-dark: #000000;

JSON

{
  "hex": "#21576e",
  "rgb": {
    "r": 33,
    "g": 87,
    "b": 110
  },
  "hsl": {
    "h": 197.922,
    "s": 53.846,
    "l": 28.039
  },
  "oklch": {
    "l": 0.43148,
    "c": 0.06775,
    "h": 229.4
  },
  "luminance": 0.08266
}

Semantic roles & 50–950 ramp

primary

#21576E

secondary

#A26449

accent

#764BDD

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #21576E

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

Preview Lab → · Contrast checker → · Palette generator →