#21739A#21739A

#21739A is a mid, moderate cyan. Relative luminance 0.149; OKLCH L 52.6% C 0.097 H 234.1°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#21739A
RGB	rgb(33, 115, 154)
HSL	hsl(199, 65%, 37%)
HSV	hsv(199, 79%, 60%)
CMYK	cmyk(78.6%, 25.3%, 0%, 39.6%)
CIE-LAB	lab(45.52, -10.30, -27.98)
CIE-LCH	lch(45.52, 29.81, 249.78°)
OKLab	oklab(52.57% -0.057 -0.0789)
OKLCH	oklch(52.57% 0.097 234.1)
XYZ	xyz(12.5883, 14.9164, 32.7813)
Luminance	0.1492 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21739A #9A4821

analogous

#219A85 #21739A #21379A

triadic

#21739A #9A2173 #739A21

tetradic

#21739A #85219A #9A4821 #379A21

square

#21739A #85219A #9A4821 #379A21

split-complementary

#21739A #9A2137 #9A8521

monochromatic

#0B2835 #164D68 #21739A #2C99CC #5AB2DC

Accessibility & contrast

On white

5.27

#21739A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#21739A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21739A

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21739A	#FFFFFF	#000000	##FFFFFF
##21739A	1.00	5.27	3.98	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60729C

Deuteranopia (green-blind)

#506799

Tritanopia (blue-blind)

#007D80

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #21739a;
/* rgb */ color: rgb(33, 115, 154);
/* oklch */ color: oklch(52.6% 0.097 234.1);

Tailwind

colors: {
  custom: {
    50: '#709bb8',
    500: '#21739a',
    950: '#000000',
  },
}

SCSS

$custom: #21739a;
$custom-light: #709bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#21739a",
  "rgb": {
    "r": 33,
    "g": 115,
    "b": 154
  },
  "hsl": {
    "h": 199.339,
    "s": 64.706,
    "l": 36.667
  },
  "oklch": {
    "l": 0.52568,
    "c": 0.09731,
    "h": 234.1
  },
  "luminance": 0.14918
}

Semantic roles & 50–950 ramp

primary

#21739A

secondary

#C07957

accent

#7640E8

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #21739A

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

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