#21799D#21799D

#21799D is a mid, moderate cyan. Relative luminance 0.164; OKLCH L 54.2% C 0.097 H 230.4°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#21799D
RGB	rgb(33, 121, 157)
HSL	hsl(197, 65%, 37%)
HSV	hsv(197, 79%, 62%)
CMYK	cmyk(79%, 22.9%, 0%, 38.4%)
CIE-LAB	lab(47.53, -12.67, -26.61)
CIE-LCH	lch(47.53, 29.47, 244.53°)
OKLab	oklab(54.22% -0.0618 -0.0749)
OKLCH	oklch(54.22% 0.097 230.4)
XYZ	xyz(13.5479, 16.4308, 34.3492)
Luminance	0.1643 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21799D #9D4521

analogous

#219D83 #21799D #213B9D

triadic

#21799D #9D2179 #799D21

tetradic

#21799D #83219D #9D4521 #3B9D21

square

#21799D #83219D #9D4521 #3B9D21

split-complementary

#21799D #9D213B #9D8321

monochromatic

#0C2B38 #16526A #21799D #2CA0D0 #5CB7DD

Accessibility & contrast

On white

4.90

#21799D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#21799D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21799D

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21799D	#FFFFFF	#000000	##FFFFFF
##21799D	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#67779F

Deuteranopia (green-blind)

#566C9C

Tritanopia (blue-blind)

#008385

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #21799d;
/* rgb */ color: rgb(33, 121, 157);
/* oklch */ color: oklch(54.2% 0.097 230.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#21799d",
  "rgb": {
    "r": 33,
    "g": 121,
    "b": 157
  },
  "hsl": {
    "h": 197.419,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.54221,
    "c": 0.09709,
    "h": 230.4
  },
  "luminance": 0.16432
}

Semantic roles & 50–950 ramp

primary

#21799D

secondary

#C17759

accent

#7140E8

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #21799D

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

Preview Lab → · Contrast checker → · Palette generator →