#2180A6#2180A6

#2180A6 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.4% C 0.102 H 230.2°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#2180A6
RGB	rgb(33, 128, 166)
HSL	hsl(197, 67%, 39%)
HSV	hsv(197, 80%, 65%)
CMYK	cmyk(80.1%, 22.9%, 0%, 34.9%)
CIE-LAB	lab(50.11, -13.41, -27.85)
CIE-LCH	lch(50.11, 30.92, 244.29°)
OKLab	oklab(56.41% -0.0653 -0.0784)
OKLCH	oklch(56.41% 0.102 230.2)
XYZ	xyz(15.2265, 18.5130, 38.8399)
Luminance	0.1852 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2180A6 #A64721

analogous

#21A68A #2180A6 #213EA6

triadic

#2180A6 #A62180 #80A621

tetradic

#2180A6 #8A21A6 #A64721 #3EA621

square

#2180A6 #8A21A6 #A64721 #3EA621

split-complementary

#2180A6 #A6213E #A68A21

monochromatic

#0D3140 #175973 #2180A6 #2FA6D6 #62BCE0

Accessibility & contrast

On white

4.47

#2180A6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#2180A6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2180A6

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2180A6	#FFFFFF	#000000	##000000
##2180A6	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7EA8

Deuteranopia (green-blind)

#5B72A5

Tritanopia (blue-blind)

#008A8D

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #2180a6;
/* rgb */ color: rgb(33, 128, 166);
/* oklch */ color: oklch(56.4% 0.102 230.2);

Tailwind

colors: {
  custom: {
    50: '#73a4c0',
    500: '#2180a6',
    950: '#000000',
  },
}

SCSS

$custom: #2180a6;
$custom-light: #73a4c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2180a6",
  "rgb": {
    "r": 33,
    "g": 128,
    "b": 166
  },
  "hsl": {
    "h": 197.143,
    "s": 66.834,
    "l": 39.02
  },
  "oklch": {
    "l": 0.56411,
    "c": 0.10205,
    "h": 230.2
  },
  "luminance": 0.18515
}

Semantic roles & 50–950 ramp

primary

#2180A6

secondary

#C57B5E

accent

#6F3EEA

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #2180A6

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

Preview Lab → · Contrast checker → · Palette generator →