#21799B#21799B

#21799B is a mid, moderate cyan. Relative luminance 0.164; OKLCH L 54.1% C 0.095 H 229.0°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#21799B
RGB	rgb(33, 121, 155)
HSL	hsl(197, 65%, 37%)
HSV	hsv(197, 79%, 61%)
CMYK	cmyk(78.7%, 21.9%, 0%, 39.2%)
CIE-LAB	lab(47.45, -13.39, -25.57)
CIE-LCH	lch(47.45, 28.86, 242.36°)
OKLab	oklab(54.12% -0.0626 -0.0719)
OKLCH	oklch(54.12% 0.095 229)
XYZ	xyz(13.3785, 16.3630, 33.4573)
Luminance	0.1636 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21799B #9B4321

analogous

#219B80 #21799B #213C9B

triadic

#21799B #9B2179 #799B21

tetradic

#21799B #80219B #9B4321 #3C9B21

square

#21799B #80219B #9B4321 #3C9B21

split-complementary

#21799B #9B213C #9B8021

monochromatic

#0C2A36 #165269 #21799B #2CA0CD #5AB8DC

Accessibility & contrast

On white

4.91

#21799B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#21799B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21799B

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21799B	#FFFFFF	#000000	##FFFFFF
##21799B	1.00	4.91	4.27	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#67779D

Deuteranopia (green-blind)

#576B9B

Tritanopia (blue-blind)

#008384

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #21799b;
/* rgb */ color: rgb(33, 121, 155);
/* oklch */ color: oklch(54.1% 0.095 229.0);

Tailwind

colors: {
  custom: {
    50: '#709fb8',
    500: '#21799b',
    950: '#000000',
  },
}

SCSS

$custom: #21799b;
$custom-light: #709fb8;
$custom-dark: #000000;

JSON

{
  "hex": "#21799b",
  "rgb": {
    "r": 33,
    "g": 121,
    "b": 155
  },
  "hsl": {
    "h": 196.721,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.54122,
    "c": 0.0953,
    "h": 229
  },
  "luminance": 0.16365
}

Semantic roles & 50–950 ramp

primary

#21799B

secondary

#C07558

accent

#6F40E8

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #21799B

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

Preview Lab → · Contrast checker → · Palette generator →