#2181A2#2181A2

#2181A2 is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.5% C 0.098 H 226.3°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#2181A2
RGB	rgb(33, 129, 162)
HSL	hsl(195, 66%, 38%)
HSV	hsv(195, 80%, 64%)
CMYK	cmyk(79.6%, 20.4%, 0%, 36.5%)
CIE-LAB	lab(50.25, -15.39, -25.31)
CIE-LCH	lch(50.25, 29.63, 238.70°)
OKLab	oklab(56.47% -0.0678 -0.0711)
OKLCH	oklch(56.47% 0.098 226.3)
XYZ	xyz(14.9963, 18.6306, 36.9811)
Luminance	0.1863 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2181A2 #A24221

analogous

#21A282 #2181A2 #2140A2

triadic

#2181A2 #A22181 #81A221

tetradic

#2181A2 #8221A2 #A24221 #40A221

square

#2181A2 #8221A2 #A24221 #40A221

split-complementary

#2181A2 #A22140 #A28221

monochromatic

#0C303C #17596F #2181A2 #2CA9D4 #5FBEDE

Accessibility & contrast

On white

4.44

#2181A2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#2181A2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2181A2

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2181A2	#FFFFFF	#000000	##000000
##2181A2	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7EA4

Deuteranopia (green-blind)

#5E72A2

Tritanopia (blue-blind)

#008B8C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #2181a2;
/* rgb */ color: rgb(33, 129, 162);
/* oklch */ color: oklch(56.5% 0.098 226.3);

Tailwind

colors: {
  custom: {
    50: '#72a5bd',
    500: '#2181a2',
    950: '#000000',
  },
}

SCSS

$custom: #2181a2;
$custom-light: #72a5bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2181a2",
  "rgb": {
    "r": 33,
    "g": 129,
    "b": 162
  },
  "hsl": {
    "h": 195.349,
    "s": 66.154,
    "l": 38.235
  },
  "oklch": {
    "l": 0.56466,
    "c": 0.09824,
    "h": 226.3
  },
  "luminance": 0.18632
}

Semantic roles & 50–950 ramp

primary

#2181A2

secondary

#C3765C

accent

#6A3FE9

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #2181A2

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

Preview Lab → · Contrast checker → · Palette generator →