#2183A0#2183A0

#2183A0 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 56.9% C 0.096 H 222.8°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#2183A0
RGB	rgb(33, 131, 160)
HSL	hsl(194, 66%, 38%)
HSV	hsv(194, 79%, 63%)
CMYK	cmyk(79.4%, 18.1%, 0%, 37.3%)
CIE-LAB	lab(50.79, -17.19, -23.31)
CIE-LCH	lch(50.79, 28.97, 233.59°)
OKLab	oklab(56.87% -0.0706 -0.0653)
OKLCH	oklch(56.87% 0.096 222.8)
XYZ	xyz(15.0860, 19.0921, 36.1409)
Luminance	0.1909 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2183A0 #A03E21

analogous

#21A07D #2183A0 #2143A0

triadic

#2183A0 #A02183 #83A021

tetradic

#2183A0 #7D21A0 #A03E21 #43A021

square

#2183A0 #7D21A0 #A03E21 #43A021

split-complementary

#2183A0 #A02143 #A07D21

monochromatic

#0C303B #17596D #2183A0 #2BADD3 #5EC0DE

Accessibility & contrast

On white

4.36

#2183A0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#2183A0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2183A0

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2183A0	#FFFFFF	#000000	##000000
##2183A0	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7280A1

Deuteranopia (green-blind)

#6174A0

Tritanopia (blue-blind)

#008C8C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #2183a0;
/* rgb */ color: rgb(33, 131, 160);
/* oklch */ color: oklch(56.9% 0.096 222.8);

Tailwind

colors: {
  custom: {
    50: '#72a7bc',
    500: '#2183a0',
    950: '#000000',
  },
}

SCSS

$custom: #2183a0;
$custom-light: #72a7bc;
$custom-dark: #000000;

JSON

{
  "hex": "#2183a0",
  "rgb": {
    "r": 33,
    "g": 131,
    "b": 160
  },
  "hsl": {
    "h": 193.701,
    "s": 65.803,
    "l": 37.843
  },
  "oklch": {
    "l": 0.56873,
    "c": 0.09617,
    "h": 222.8
  },
  "luminance": 0.19094
}

Semantic roles & 50–950 ramp

primary

#2183A0

secondary

#C2725B

accent

#663FE9

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #2183A0

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

Preview Lab → · Contrast checker → · Palette generator →