#21879F#21879F

#21879F is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 57.8% C 0.095 H 217.9°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#21879F
RGB	rgb(33, 135, 159)
HSL	hsl(191, 66%, 38%)
HSV	hsv(191, 79%, 62%)
CMYK	cmyk(79.2%, 15.1%, 0%, 37.6%)
CIE-LAB	lab(52.01, -19.70, -20.87)
CIE-LCH	lch(52.01, 28.70, 226.65°)
OKLab	oklab(57.84% -0.075 -0.0583)
OKLCH	oklch(57.84% 0.095 217.9)
XYZ	xyz(15.5465, 20.1526, 35.8646)
Luminance	0.2015 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21879F #9F3921

analogous

#219F78 #21879F #21489F

triadic

#21879F #9F2187 #879F21

tetradic

#21879F #78219F #9F3921 #489F21

square

#21879F #78219F #9F3921 #489F21

split-complementary

#21879F #9F2148 #9F7821

monochromatic

#0C313A #165C6C #21879F #2CB2D2 #5DC5DD

Accessibility & contrast

On white

4.17

#21879F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#21879F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21879F

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21879F	#FFFFFF	#000000	##000000
##21879F	1.00	4.17	5.03	5.03
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7883A0

Deuteranopia (green-blind)

#67779F

Tritanopia (blue-blind)

#008F8F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #21879f;
/* rgb */ color: rgb(33, 135, 159);
/* oklch */ color: oklch(57.8% 0.095 217.9);

Tailwind

colors: {
  custom: {
    50: '#72aabb',
    500: '#21879f',
    950: '#000000',
  },
}

SCSS

$custom: #21879f;
$custom-light: #72aabb;
$custom-dark: #000000;

JSON

{
  "hex": "#21879f",
  "rgb": {
    "r": 33,
    "g": 135,
    "b": 159
  },
  "hsl": {
    "h": 191.429,
    "s": 65.625,
    "l": 37.647
  },
  "oklch": {
    "l": 0.57836,
    "c": 0.09498,
    "h": 217.9
  },
  "luminance": 0.20154
}

Semantic roles & 50–950 ramp

primary

#21879F

secondary

#C26E5A

accent

#5F3FE9

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #21879F

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

Preview Lab → · Contrast checker → · Palette generator →