#21799E#21799E

#21799E is a mid, moderate cyan. Relative luminance 0.165; OKLCH L 54.3% C 0.098 H 231.2°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#21799E
RGB	rgb(33, 121, 158)
HSL	hsl(198, 65%, 37%)
HSV	hsv(198, 79%, 62%)
CMYK	cmyk(79.1%, 23.4%, 0%, 38%)
CIE-LAB	lab(47.58, -12.31, -27.12)
CIE-LCH	lch(47.58, 29.79, 245.59°)
OKLab	oklab(54.27% -0.0615 -0.0763)
OKLCH	oklch(54.27% 0.098 231.2)
XYZ	xyz(13.6336, 16.4650, 34.8006)
Luminance	0.1647 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21799E #9E4621

analogous

#219E85 #21799E #213B9E

triadic

#21799E #9E2179 #799E21

tetradic

#21799E #85219E #9E4621 #3B9E21

square

#21799E #85219E #9E4621 #3B9E21

split-complementary

#21799E #9E213B #9E8521

monochromatic

#0C2B39 #16526B #21799E #2CA0D1 #5CB7DD

Accessibility & contrast

On white

4.89

#21799E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#21799E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21799E

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21799E	#FFFFFF	#000000	##FFFFFF
##21799E	1.00	4.89	4.29	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6677A0

Deuteranopia (green-blind)

#566C9D

Tritanopia (blue-blind)

#008385

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #21799e;
/* rgb */ color: rgb(33, 121, 158);
/* oklch */ color: oklch(54.3% 0.098 231.2);

Tailwind

colors: {
  custom: {
    50: '#719fba',
    500: '#21799e',
    950: '#000000',
  },
}

SCSS

$custom: #21799e;
$custom-light: #719fba;
$custom-dark: #000000;

JSON

{
  "hex": "#21799e",
  "rgb": {
    "r": 33,
    "g": 121,
    "b": 158
  },
  "hsl": {
    "h": 197.76,
    "s": 65.445,
    "l": 37.451
  },
  "oklch": {
    "l": 0.5427,
    "c": 0.09801,
    "h": 231.2
  },
  "luminance": 0.16467
}

Semantic roles & 50–950 ramp

primary

#21799E

secondary

#C17859

accent

#713FE8

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #21799E

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

Preview Lab → · Contrast checker → · Palette generator →