#21818F#21818F

#21818F is a mid, moderate teal. Relative luminance 0.180; OKLCH L 55.6% C 0.087 H 209.5°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#21818F
RGB	rgb(33, 129, 143)
HSL	hsl(188, 63%, 35%)
HSV	hsv(188, 77%, 56%)
CMYK	cmyk(76.9%, 9.8%, 0%, 43.9%)
CIE-LAB	lab(49.50, -21.89, -15.37)
CIE-LCH	lch(49.50, 26.75, 215.07°)
OKLab	oklab(55.62% -0.0756 -0.0428)
OKLCH	oklch(55.62% 0.087 209.5)
XYZ	xyz(13.4332, 18.0054, 28.7487)
Luminance	0.1801 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21818F #8F2F21

analogous

#218F66 #21818F #214A8F

triadic

#21818F #8F2181 #818F21

tetradic

#21818F #66218F #8F2F21 #4A8F21

square

#21818F #66218F #8F2F21 #4A8F21

split-complementary

#21818F #8F214A #8F6621

monochromatic

#0A272C #16545D #21818F #2CAEC1 #53C6D7

Accessibility & contrast

On white

4.56

#21818F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#21818F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21818F

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21818F	#FFFFFF	#000000	##000000
##21818F	1.00	4.56	4.60	4.60
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#757C90

Deuteranopia (green-blind)

#66718F

Tritanopia (blue-blind)

#008785

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #21818f;
/* rgb */ color: rgb(33, 129, 143);
/* oklch */ color: oklch(55.6% 0.087 209.5);

Tailwind

colors: {
  custom: {
    50: '#6fa6af',
    500: '#21818f',
    950: '#000000',
  },
}

SCSS

$custom: #21818f;
$custom-light: #6fa6af;
$custom-dark: #000000;

JSON

{
  "hex": "#21818f",
  "rgb": {
    "r": 33,
    "g": 129,
    "b": 143
  },
  "hsl": {
    "h": 187.636,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.55615,
    "c": 0.0869,
    "h": 209.5
  },
  "luminance": 0.18007
}

Semantic roles & 50–950 ramp

primary

#21818F

secondary

#BB5E51

accent

#5742E6

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #21818F

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

Preview Lab → · Contrast checker → · Palette generator →