#21737D#21737D

#21737D is a mid, moderate teal. Relative luminance 0.141; OKLCH L 51.2% C 0.077 H 206.9°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#21737D
RGB	rgb(33, 115, 125)
HSL	hsl(187, 58%, 31%)
HSV	hsv(187, 74%, 49%)
CMYK	cmyk(73.6%, 8%, 0%, 51%)
CIE-LAB	lab(44.32, -20.43, -12.57)
CIE-LCH	lch(44.32, 23.98, 211.60°)
OKLab	oklab(51.22% -0.0688 -0.0349)
OKLCH	oklch(51.22% 0.077 206.9)
XYZ	xyz(10.4580, 14.0642, 21.5616)
Luminance	0.1406 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21737D #7D2B21

analogous

#217D59 #21737D #21457D

triadic

#21737D #7D2173 #737D21

tetradic

#21737D #59217D #7D2B21 #457D21

square

#21737D #59217D #7D2B21 #457D21

split-complementary

#21737D #7D2145 #7D5921

monochromatic

#071A1C #14464D #21737D #2EA0AD #49C1CF

Accessibility & contrast

On white

5.51

#21737D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#21737D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21737D

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21737D	#FFFFFF	#000000	##FFFFFF
##21737D	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#696E7E

Deuteranopia (green-blind)

#5C657D

Tritanopia (blue-blind)

#007876

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #21737d;
/* rgb */ color: rgb(33, 115, 125);
/* oklch */ color: oklch(51.2% 0.077 206.9);

Tailwind

colors: {
  custom: {
    50: '#6b9ba2',
    500: '#21737d',
    950: '#000000',
  },
}

SCSS

$custom: #21737d;
$custom-light: #6b9ba2;
$custom-dark: #000000;

JSON

{
  "hex": "#21737d",
  "rgb": {
    "r": 33,
    "g": 115,
    "b": 125
  },
  "hsl": {
    "h": 186.522,
    "s": 58.228,
    "l": 30.98
  },
  "oklch": {
    "l": 0.51215,
    "c": 0.07716,
    "h": 206.9
  },
  "luminance": 0.14065
}

Semantic roles & 50–950 ramp

primary

#21737D

secondary

#B0554A

accent

#5746E1

background

#F6F9F9

surface

#ECF2F2

border

#C7CCCC

text

#080E0F

muted

#7A7E7E

Preview Lab

Preview with #21737D

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

Preview Lab → · Contrast checker → · Palette generator →