#21828B#21828B

#21828B is a mid, moderate teal. Relative luminance 0.182; OKLCH L 55.7% C 0.086 H 204.3°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#21828B
RGB	rgb(33, 130, 139)
HSL	hsl(185, 62%, 34%)
HSV	hsv(185, 76%, 55%)
CMYK	cmyk(76.3%, 6.5%, 0%, 45.5%)
CIE-LAB	lab(49.68, -23.73, -12.76)
CIE-LCH	lch(49.68, 26.94, 208.27°)
OKLab	oklab(55.71% -0.0784 -0.0355)
OKLCH	oklch(55.71% 0.086 204.3)
XYZ	xyz(13.2680, 18.1511, 27.2253)
Luminance	0.1815 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21828B #8B2A21

analogous

#218B5F #21828B #214D8B

triadic

#21828B #8B2182 #828B21

tetradic

#21828B #5F218B #8B2A21 #4D8B21

square

#21828B #5F218B #8B2A21 #4D8B21

split-complementary

#21828B #8B214D #8B5F21

monochromatic

#0A2528 #15545A #21828B #2DB0BC #51CAD6

Accessibility & contrast

On white

4.54

#21828B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#21828B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21828B

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21828B	#FFFFFF	#000000	##000000
##21828B	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#777C8C

Deuteranopia (green-blind)

#68718B

Tritanopia (blue-blind)

#008885

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #21828b;
/* rgb */ color: rgb(33, 130, 139);
/* oklch */ color: oklch(55.7% 0.086 204.3);

Tailwind

colors: {
  custom: {
    50: '#6fa6ac',
    500: '#21828b',
    950: '#000000',
  },
}

SCSS

$custom: #21828b;
$custom-light: #6fa6ac;
$custom-dark: #000000;

JSON

{
  "hex": "#21828b",
  "rgb": {
    "r": 33,
    "g": 130,
    "b": 139
  },
  "hsl": {
    "h": 185.094,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.55709,
    "c": 0.08608,
    "h": 204.3
  },
  "luminance": 0.18153
}

Semantic roles & 50–950 ramp

primary

#21828B

secondary

#B9584F

accent

#5143E5

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #21828B

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

Preview Lab → · Contrast checker → · Palette generator →