#21798B#21798B

#21798B is a mid, moderate cyan. Relative luminance 0.159; OKLCH L 53.4% C 0.084 H 214.7°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#21798B
RGB	rgb(33, 121, 139)
HSL	hsl(190, 62%, 34%)
HSV	hsv(190, 76%, 55%)
CMYK	cmyk(76.3%, 12.9%, 0%, 45.5%)
CIE-LAB	lab(46.79, -18.97, -17.15)
CIE-LCH	lch(46.79, 25.57, 222.12°)
OKLab	oklab(53.38% -0.069 -0.0478)
OKLCH	oklch(53.38% 0.084 214.7)
XYZ	xyz(12.1228, 15.8607, 26.8436)
Luminance	0.1586 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21798B #8B3321

analogous

#218B68 #21798B #21448B

triadic

#21798B #8B2179 #798B21

tetradic

#21798B #68218B #8B3321 #448B21

square

#21798B #68218B #8B3321 #448B21

split-complementary

#21798B #8B2144 #8B6821

monochromatic

#0A2328 #154E5A #21798B #2DA4BC #51BFD6

Accessibility & contrast

On white

5.03

#21798B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#21798B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21798B

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21798B	#FFFFFF	#000000	##FFFFFF
##21798B	1.00	5.03	4.17	5.03
#FFFFFF	5.03	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C758C

Deuteranopia (green-blind)

#5E6A8B

Tritanopia (blue-blind)

#00807F

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #21798b;
/* rgb */ color: rgb(33, 121, 139);
/* oklch */ color: oklch(53.4% 0.084 214.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#21798b",
  "rgb": {
    "r": 33,
    "g": 121,
    "b": 139
  },
  "hsl": {
    "h": 190.189,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.53379,
    "c": 0.08398,
    "h": 214.7
  },
  "luminance": 0.15862
}

Semantic roles & 50–950 ramp

primary

#21798B

secondary

#B9614F

accent

#5F43E5

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #21798B

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

Preview Lab → · Contrast checker → · Palette generator →