#2183A1#2183A1

#2183A1 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 56.9% C 0.097 H 223.6°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#2183A1
RGB	rgb(33, 131, 161)
HSL	hsl(194, 66%, 38%)
HSV	hsv(194, 80%, 63%)
CMYK	cmyk(79.5%, 18.6%, 0%, 36.9%)
CIE-LAB	lab(50.84, -16.84, -23.83)
CIE-LCH	lch(50.84, 29.18, 234.75°)
OKLab	oklab(56.92% -0.0702 -0.0668)
OKLCH	oklch(56.92% 0.097 223.6)
XYZ	xyz(15.1738, 19.1273, 36.6035)
Luminance	0.1913 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2183A1 #A13F21

analogous

#21A17F #2183A1 #2143A1

triadic

#2183A1 #A12183 #83A121

tetradic

#2183A1 #7F21A1 #A13F21 #43A121

square

#2183A1 #7F21A1 #A13F21 #43A121

split-complementary

#2183A1 #A12143 #A17F21

monochromatic

#0C303B #175A6E #2183A1 #2CACD4 #5EC0DE

Accessibility & contrast

On white

4.35

#2183A1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#2183A1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2183A1

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2183A1	#FFFFFF	#000000	##000000
##2183A1	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7280A3

Deuteranopia (green-blind)

#6174A1

Tritanopia (blue-blind)

#008C8D

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #2183a1;
/* rgb */ color: rgb(33, 131, 161);
/* oklch */ color: oklch(56.9% 0.097 223.6);

Tailwind

colors: {
  custom: {
    50: '#72a7bd',
    500: '#2183a1',
    950: '#000000',
  },
}

SCSS

$custom: #2183a1;
$custom-light: #72a7bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2183a1",
  "rgb": {
    "r": 33,
    "g": 131,
    "b": 161
  },
  "hsl": {
    "h": 194.063,
    "s": 65.979,
    "l": 38.039
  },
  "oklch": {
    "l": 0.5692,
    "c": 0.0969,
    "h": 223.6
  },
  "luminance": 0.19129
}

Semantic roles & 50–950 ramp

primary

#2183A1

secondary

#C3735B

accent

#673FE9

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #2183A1

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

Preview Lab → · Contrast checker → · Palette generator →