#21729C#21729C

#21729C is a mid, moderate cyan. Relative luminance 0.148; OKLCH L 52.4% C 0.100 H 236.4°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#21729C
RGB	rgb(33, 114, 156)
HSL	hsl(200, 65%, 37%)
HSV	hsv(200, 79%, 61%)
CMYK	cmyk(78.8%, 26.9%, 0%, 38.8%)
CIE-LAB	lab(45.30, -8.99, -29.50)
CIE-LCH	lch(45.30, 30.84, 253.06°)
OKLab	oklab(52.42% -0.0553 -0.0833)
OKLCH	oklch(52.42% 0.1 236.4)
XYZ	xyz(12.6429, 14.7567, 33.6280)
Luminance	0.1476 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21729C #9C4B21

analogous

#219C89 #21729C #21359C

triadic

#21729C #9C2172 #729C21

tetradic

#21729C #89219C #9C4B21 #359C21

square

#21729C #89219C #9C4B21 #359C21

split-complementary

#21729C #9C2135 #9C8921

monochromatic

#0C2837 #164D69 #21729C #2C97CF #5BB0DC

Accessibility & contrast

On white

5.31

#21729C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#21729C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21729C

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21729C	#FFFFFF	#000000	##FFFFFF
##21729C	1.00	5.31	3.95	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E729E

Deuteranopia (green-blind)

#4D669B

Tritanopia (blue-blind)

#007D80

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #21729c;
/* rgb */ color: rgb(33, 114, 156);
/* oklch */ color: oklch(52.4% 0.100 236.4);

Tailwind

colors: {
  custom: {
    50: '#709ab9',
    500: '#21729c',
    950: '#000000',
  },
}

SCSS

$custom: #21729c;
$custom-light: #709ab9;
$custom-dark: #000000;

JSON

{
  "hex": "#21729c",
  "rgb": {
    "r": 33,
    "g": 114,
    "b": 156
  },
  "hsl": {
    "h": 200.488,
    "s": 65.079,
    "l": 37.059
  },
  "oklch": {
    "l": 0.52424,
    "c": 0.09998,
    "h": 236.4
  },
  "luminance": 0.14758
}

Semantic roles & 50–950 ramp

primary

#21729C

secondary

#C17C58

accent

#7940E8

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #21729C

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

Preview Lab → · Contrast checker → · Palette generator →