#2180A0#2180A0

#2180A0 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.1% C 0.097 H 225.8°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#2180A0
RGB	rgb(33, 128, 160)
HSL	hsl(195, 66%, 38%)
HSV	hsv(195, 79%, 63%)
CMYK	cmyk(79.4%, 20%, 0%, 37.3%)
CIE-LAB	lab(49.86, -15.54, -24.76)
CIE-LCH	lch(49.86, 29.24, 237.89°)
OKLab	oklab(56.12% -0.0676 -0.0695)
OKLCH	oklch(56.12% 0.097 225.8)
XYZ	xyz(14.6889, 18.2979, 36.0086)
Luminance	0.1830 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2180A0 #A04121

analogous

#21A080 #2180A0 #2141A0

triadic

#2180A0 #A02180 #80A021

tetradic

#2180A0 #8021A0 #A04121 #41A021

square

#2180A0 #8021A0 #A04121 #41A021

split-complementary

#2180A0 #A02141 #A08021

monochromatic

#0C2F3B #17576D #2180A0 #2BA9D3 #5EBDDE

Accessibility & contrast

On white

4.51

#2180A0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#2180A0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2180A0

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2180A0	#FFFFFF	#000000	##000000
##2180A0	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7DA2

Deuteranopia (green-blind)

#5E71A0

Tritanopia (blue-blind)

#00898A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #2180a0;
/* rgb */ color: rgb(33, 128, 160);
/* oklch */ color: oklch(56.1% 0.097 225.8);

Tailwind

colors: {
  custom: {
    50: '#72a5bc',
    500: '#2180a0',
    950: '#000000',
  },
}

SCSS

$custom: #2180a0;
$custom-light: #72a5bc;
$custom-dark: #000000;

JSON

{
  "hex": "#2180a0",
  "rgb": {
    "r": 33,
    "g": 128,
    "b": 160
  },
  "hsl": {
    "h": 195.118,
    "s": 65.803,
    "l": 37.843
  },
  "oklch": {
    "l": 0.5612,
    "c": 0.09696,
    "h": 225.8
  },
  "luminance": 0.183
}

Semantic roles & 50–950 ramp

primary

#2180A0

secondary

#C2755B

accent

#6A3FE9

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #2180A0

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

Preview Lab → · Contrast checker → · Palette generator →