#21798C#21798C

#21798C is a mid, moderate cyan. Relative luminance 0.159; OKLCH L 53.4% C 0.085 H 215.7°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#21798C
RGB	rgb(33, 121, 140)
HSL	hsl(191, 62%, 34%)
HSV	hsv(191, 76%, 55%)
CMYK	cmyk(76.4%, 13.6%, 0%, 45.1%)
CIE-LAB	lab(46.83, -18.63, -17.68)
CIE-LCH	lch(46.83, 25.68, 223.51°)
OKLab	oklab(53.42% -0.0686 -0.0493)
OKLCH	oklch(53.42% 0.085 215.7)
XYZ	xyz(12.1962, 15.8901, 27.2302)
Luminance	0.1589 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21798C #8C3421

analogous

#218C6A #21798C #21448C

triadic

#21798C #8C2179 #798C21

tetradic

#21798C #6A218C #8C3421 #448C21

square

#21798C #6A218C #8C3421 #448C21

split-complementary

#21798C #8C2144 #8C6A21

monochromatic

#0A2329 #154E5A #21798C #2DA4BE #51BED6

Accessibility & contrast

On white

5.03

#21798C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#21798C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21798C

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21798C	#FFFFFF	#000000	##FFFFFF
##21798C	1.00	5.03	4.18	5.03
#FFFFFF	5.03	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C758D

Deuteranopia (green-blind)

#5D6A8C

Tritanopia (blue-blind)

#00807F

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #21798c;
/* rgb */ color: rgb(33, 121, 140);
/* oklch */ color: oklch(53.4% 0.085 215.7);

Tailwind

colors: {
  custom: {
    50: '#6ea0ad',
    500: '#21798c',
    950: '#000000',
  },
}

SCSS

$custom: #21798c;
$custom-light: #6ea0ad;
$custom-dark: #000000;

JSON

{
  "hex": "#21798c",
  "rgb": {
    "r": 33,
    "g": 121,
    "b": 140
  },
  "hsl": {
    "h": 190.654,
    "s": 61.85,
    "l": 33.922
  },
  "oklch": {
    "l": 0.53423,
    "c": 0.08451,
    "h": 215.7
  },
  "luminance": 0.15892
}

Semantic roles & 50–950 ramp

primary

#21798C

secondary

#B9624F

accent

#6043E5

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #21798C

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

Preview Lab → · Contrast checker → · Palette generator →