#21504B#21504B

#21504B is a dark, muted teal. Relative luminance 0.066; OKLCH L 39.7% C 0.052 H 186.0°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#21504B
RGB	rgb(33, 80, 75)
HSL	hsl(174, 42%, 22%)
HSV	hsv(174, 59%, 31%)
CMYK	cmyk(58.8%, 0%, 6.2%, 68.6%)
CIE-LAB	lab(30.80, -17.37, -1.91)
CIE-LCH	lch(30.80, 17.47, 186.28°)
OKLab	oklab(39.71% -0.0516 -0.0054)
OKLCH	oklch(39.71% 0.052 186)
XYZ	xyz(4.7653, 6.5682, 7.6719)
Luminance	0.0657 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21504B #502126

analogous

#215034 #21504B #213E50

triadic

#21504B #4B2150 #504B21

tetradic

#21504B #342150 #502126 #3E5021

square

#21504B #342150 #502126 #3E5021

split-complementary

#21504B #50213E #503421

monochromatic

#091614 #0F2522 #21504B #337B74 #45A79C

Accessibility & contrast

On white

9.08

#21504B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#21504B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21504B

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21504B	#FFFFFF	#000000	##FFFFFF
##21504B	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C4C4B

Deuteranopia (green-blind)

#44464C

Tritanopia (blue-blind)

#01524E

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #21504b;
/* rgb */ color: rgb(33, 80, 75);
/* oklch */ color: oklch(39.7% 0.052 186.0);

Tailwind

colors: {
  custom: {
    50: '#61817d',
    500: '#21504b',
    950: '#000000',
  },
}

SCSS

$custom: #21504b;
$custom-light: #61817d;
$custom-dark: #000000;

JSON

{
  "hex": "#21504b",
  "rgb": {
    "r": 33,
    "g": 80,
    "b": 75
  },
  "hsl": {
    "h": 173.617,
    "s": 41.593,
    "l": 22.157
  },
  "oklch": {
    "l": 0.39707,
    "c": 0.05193,
    "h": 186
  },
  "luminance": 0.06569
}

Semantic roles & 50–950 ramp

primary

#21504B

secondary

#84494F

accent

#5663D1

background

#F5F7F7

surface

#EAEEEE

border

#C6C9C9

text

#050A09

muted

#797C7B

Preview Lab

Preview with #21504B

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

Preview Lab → · Contrast checker → · Palette generator →