#21799C#21799C

#21799C is a mid, moderate cyan. Relative luminance 0.164; OKLCH L 54.2% C 0.096 H 229.7°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#21799C
RGB	rgb(33, 121, 156)
HSL	hsl(197, 65%, 37%)
HSV	hsv(197, 79%, 61%)
CMYK	cmyk(78.8%, 22.4%, 0%, 38.8%)
CIE-LAB	lab(47.49, -13.03, -26.09)
CIE-LCH	lch(47.49, 29.16, 243.46°)
OKLab	oklab(54.17% -0.0622 -0.0734)
OKLCH	oklch(54.17% 0.096 229.7)
XYZ	xyz(13.4629, 16.3967, 33.9014)
Luminance	0.1640 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21799C #9C4421

analogous

#219C82 #21799C #213C9C

triadic

#21799C #9C2179 #799C21

tetradic

#21799C #82219C #9C4421 #3C9C21

square

#21799C #82219C #9C4421 #3C9C21

split-complementary

#21799C #9C213C #9C8221

monochromatic

#0C2B37 #165269 #21799C #2CA0CF #5BB8DC

Accessibility & contrast

On white

4.91

#21799C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#21799C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21799C

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21799C	#FFFFFF	#000000	##FFFFFF
##21799C	1.00	4.91	4.28	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#67779E

Deuteranopia (green-blind)

#576C9C

Tritanopia (blue-blind)

#008385

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #21799c;
/* rgb */ color: rgb(33, 121, 156);
/* oklch */ color: oklch(54.2% 0.096 229.7);

Tailwind

colors: {
  custom: {
    50: '#709fb9',
    500: '#21799c',
    950: '#000000',
  },
}

SCSS

$custom: #21799c;
$custom-light: #709fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#21799c",
  "rgb": {
    "r": 33,
    "g": 121,
    "b": 156
  },
  "hsl": {
    "h": 197.073,
    "s": 65.079,
    "l": 37.059
  },
  "oklch": {
    "l": 0.54171,
    "c": 0.09619,
    "h": 229.7
  },
  "luminance": 0.16398
}

Semantic roles & 50–950 ramp

primary

#21799C

secondary

#C17658

accent

#7040E8

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #21799C

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

Preview Lab → · Contrast checker → · Palette generator →