#21819E#21819E

#21819E is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.3% C 0.095 H 223.2°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#21819E
RGB	rgb(33, 129, 158)
HSL	hsl(194, 65%, 37%)
HSV	hsv(194, 79%, 62%)
CMYK	cmyk(79.1%, 18.4%, 0%, 38%)
CIE-LAB	lab(50.09, -16.79, -23.24)
CIE-LCH	lch(50.09, 28.67, 234.15°)
OKLab	oklab(56.28% -0.0694 -0.0651)
OKLCH	oklch(56.28% 0.095 223.2)
XYZ	xyz(14.6464, 18.4907, 35.1382)
Luminance	0.1849 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21819E #9E3E21

analogous

#219E7D #21819E #21439E

triadic

#21819E #9E2181 #819E21

tetradic

#21819E #7D219E #9E3E21 #439E21

square

#21819E #7D219E #9E3E21 #439E21

split-complementary

#21819E #9E2143 #9E7D21

monochromatic

#0C2E39 #16586B #21819E #2CAAD1 #5CBFDD

Accessibility & contrast

On white

4.47

#21819E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#21819E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21819E

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21819E	#FFFFFF	#000000	##000000
##21819E	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707E9F

Deuteranopia (green-blind)

#60729E

Tritanopia (blue-blind)

#008A8A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #21819e;
/* rgb */ color: rgb(33, 129, 158);
/* oklch */ color: oklch(56.3% 0.095 223.2);

Tailwind

colors: {
  custom: {
    50: '#71a5ba',
    500: '#21819e',
    950: '#000000',
  },
}

SCSS

$custom: #21819e;
$custom-light: #71a5ba;
$custom-dark: #000000;

JSON

{
  "hex": "#21819e",
  "rgb": {
    "r": 33,
    "g": 129,
    "b": 158
  },
  "hsl": {
    "h": 193.92,
    "s": 65.445,
    "l": 37.451
  },
  "oklch": {
    "l": 0.56277,
    "c": 0.09517,
    "h": 223.2
  },
  "luminance": 0.18492
}

Semantic roles & 50–950 ramp

primary

#21819E

secondary

#C17259

accent

#673FE8

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #21819E

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

Preview Lab → · Contrast checker → · Palette generator →