#21798D#21798D

#21798D is a mid, moderate cyan. Relative luminance 0.159; OKLCH L 53.5% C 0.085 H 216.7°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#21798D
RGB	rgb(33, 121, 141)
HSL	hsl(191, 62%, 34%)
HSV	hsv(191, 77%, 55%)
CMYK	cmyk(76.6%, 14.2%, 0%, 44.7%)
CIE-LAB	lab(46.87, -18.28, -18.21)
CIE-LCH	lch(46.87, 25.81, 224.88°)
OKLab	oklab(53.47% -0.0682 -0.0508)
OKLCH	oklch(53.47% 0.085 216.7)
XYZ	xyz(12.2703, 15.9197, 27.6203)
Luminance	0.1592 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21798D #8D3521

analogous

#218D6B #21798D #21438D

triadic

#21798D #8D2179 #798D21

tetradic

#21798D #6B218D #8D3521 #438D21

square

#21798D #6B218D #8D3521 #438D21

split-complementary

#21798D #8D2143 #8D6B21

monochromatic

#0A242A #154E5B #21798D #2DA4BF #52BED6

Accessibility & contrast

On white

5.02

#21798D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#21798D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21798D

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21798D	#FFFFFF	#000000	##FFFFFF
##21798D	1.00	5.02	4.18	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C758E

Deuteranopia (green-blind)

#5D6A8D

Tritanopia (blue-blind)

#00807F

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #21798d;
/* rgb */ color: rgb(33, 121, 141);
/* oklch */ color: oklch(53.5% 0.085 216.7);

Tailwind

colors: {
  custom: {
    50: '#6ea0ae',
    500: '#21798d',
    950: '#000000',
  },
}

SCSS

$custom: #21798d;
$custom-light: #6ea0ae;
$custom-dark: #000000;

JSON

{
  "hex": "#21798d",
  "rgb": {
    "r": 33,
    "g": 121,
    "b": 141
  },
  "hsl": {
    "h": 191.111,
    "s": 62.069,
    "l": 34.118
  },
  "oklch": {
    "l": 0.53467,
    "c": 0.08505,
    "h": 216.7
  },
  "luminance": 0.15921
}

Semantic roles & 50–950 ramp

primary

#21798D

secondary

#BA6350

accent

#6143E5

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #21798D

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

Preview Lab → · Contrast checker → · Palette generator →