#21729B#21729B

#21729B is a mid, moderate cyan. Relative luminance 0.147; OKLCH L 52.4% C 0.099 H 235.8°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#21729B
RGB	rgb(33, 114, 155)
HSL	hsl(200, 65%, 37%)
HSV	hsv(200, 79%, 61%)
CMYK	cmyk(78.7%, 26.5%, 0%, 39.2%)
CIE-LAB	lab(45.25, -9.35, -28.98)
CIE-LCH	lch(45.25, 30.46, 252.11°)
OKLab	oklab(52.37% -0.0556 -0.0818)
OKLCH	oklch(52.37% 0.099 235.8)
XYZ	xyz(12.5585, 14.7230, 33.1839)
Luminance	0.1472 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21729B #9B4A21

analogous

#219B87 #21729B #21359B

triadic

#21729B #9B2172 #729B21

tetradic

#21729B #87219B #9B4A21 #359B21

square

#21729B #87219B #9B4A21 #359B21

split-complementary

#21729B #9B2135 #9B8721

monochromatic

#0C2836 #164D69 #21729B #2C97CD #5AB0DC

Accessibility & contrast

On white

5.32

#21729B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#21729B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21729B

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21729B	#FFFFFF	#000000	##FFFFFF
##21729B	1.00	5.32	3.94	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E719D

Deuteranopia (green-blind)

#4E669A

Tritanopia (blue-blind)

#007D80

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #21729b;
/* rgb */ color: rgb(33, 114, 155);
/* oklch */ color: oklch(52.4% 0.099 235.8);

Tailwind

colors: {
  custom: {
    50: '#709ab8',
    500: '#21729b',
    950: '#000000',
  },
}

SCSS

$custom: #21729b;
$custom-light: #709ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#21729b",
  "rgb": {
    "r": 33,
    "g": 114,
    "b": 155
  },
  "hsl": {
    "h": 200.164,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.52371,
    "c": 0.09894,
    "h": 235.8
  },
  "luminance": 0.14725
}

Semantic roles & 50–950 ramp

primary

#21729B

secondary

#C07B58

accent

#7840E8

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #21729B

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

Preview Lab → · Contrast checker → · Palette generator →