#21737C#21737C

#21737C is a mid, moderate teal. Relative luminance 0.140; OKLCH L 51.2% C 0.077 H 205.7°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#21737C
RGB	rgb(33, 115, 124)
HSL	hsl(186, 58%, 31%)
HSV	hsv(186, 73%, 49%)
CMYK	cmyk(73.4%, 7.3%, 0%, 51.4%)
CIE-LAB	lab(44.29, -20.76, -12.02)
CIE-LCH	lch(44.29, 23.99, 210.08°)
OKLab	oklab(51.17% -0.0693 -0.0334)
OKLCH	oklch(51.17% 0.077 205.7)
XYZ	xyz(10.3944, 14.0388, 21.2268)
Luminance	0.1404 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21737C #7C2A21

analogous

#217C57 #21737C #21457C

triadic

#21737C #7C2173 #737C21

tetradic

#21737C #57217C #7C2A21 #457C21

square

#21737C #57217C #7C2A21 #457C21

split-complementary

#21737C #7C2145 #7C5721

monochromatic

#07191B #14464C #21737C #2EA0AC #49C1CF

Accessibility & contrast

On white

5.51

#21737C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#21737C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21737C

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21737C	#FFFFFF	#000000	##FFFFFF
##21737C	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)

#696E7D

Deuteranopia (green-blind)

#5C657C

Tritanopia (blue-blind)

#007876

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #21737c;
/* rgb */ color: rgb(33, 115, 124);
/* oklch */ color: oklch(51.2% 0.077 205.7);

Tailwind

colors: {
  custom: {
    50: '#6b9ba1',
    500: '#21737c',
    950: '#000000',
  },
}

SCSS

$custom: #21737c;
$custom-light: #6b9ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#21737c",
  "rgb": {
    "r": 33,
    "g": 115,
    "b": 124
  },
  "hsl": {
    "h": 185.934,
    "s": 57.962,
    "l": 30.784
  },
  "oklch": {
    "l": 0.51174,
    "c": 0.07689,
    "h": 205.7
  },
  "luminance": 0.1404
}

Semantic roles & 50–950 ramp

primary

#21737C

secondary

#AF544A

accent

#5647E1

background

#F6F9F9

surface

#ECF2F2

border

#C7CCCC

text

#070E0F

muted

#7A7E7E

Preview Lab

Preview with #21737C

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

Preview Lab → · Contrast checker → · Palette generator →