#21545B#21545B

#21545B is a dark, muted teal. Relative luminance 0.074; OKLCH L 41.5% C 0.055 H 207.5°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#21545B
RGB	rgb(33, 84, 91)
HSL	hsl(187, 47%, 24%)
HSV	hsv(187, 64%, 36%)
CMYK	cmyk(63.7%, 7.7%, 0%, 64.3%)
CIE-LAB	lab(32.74, -14.55, -9.19)
CIE-LCH	lch(32.74, 17.21, 212.27°)
OKLab	oklab(41.46% -0.0488 -0.0254)
OKLCH	oklch(41.46% 0.055 207.5)
XYZ	xyz(5.6851, 7.4187, 11.0279)
Luminance	0.0742 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21545B #5B2821

analogous

#215B45 #21545B #21375B

triadic

#21545B #5B2154 #545B21

tetradic

#21545B #45215B #5B2821 #375B21

square

#21545B #45215B #5B2821 #375B21

split-complementary

#21545B #5B2137 #5B4521

monochromatic

#081516 #112B2E #21545B #317D88 #42A7B5

Accessibility & contrast

On white

8.45

#21545B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#21545B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21545B

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21545B	#FFFFFF	#000000	##FFFFFF
##21545B	1.00	8.45	2.48	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D515B

Deuteranopia (green-blind)

#444A5B

Tritanopia (blue-blind)

#005856

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #21545b;
/* rgb */ color: rgb(33, 84, 91);
/* oklch */ color: oklch(41.5% 0.055 207.5);

Tailwind

colors: {
  custom: {
    50: '#638489',
    500: '#21545b',
    950: '#000000',
  },
}

SCSS

$custom: #21545b;
$custom-light: #638489;
$custom-dark: #000000;

JSON

{
  "hex": "#21545b",
  "rgb": {
    "r": 33,
    "g": 84,
    "b": 91
  },
  "hsl": {
    "h": 187.241,
    "s": 46.774,
    "l": 24.314
  },
  "oklch": {
    "l": 0.41458,
    "c": 0.05504,
    "h": 207.5
  },
  "luminance": 0.07419
}

Semantic roles & 50–950 ramp

primary

#21545B

secondary

#8F5149

accent

#6151D6

background

#F6F8F8

surface

#EBEFF0

border

#C6CACB

text

#060B0B

muted

#7A7C7C

Preview Lab

Preview with #21545B

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

Preview Lab → · Contrast checker → · Palette generator →