#2180A9#2180A9

#2180A9 is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.6% C 0.105 H 232.2°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#2180A9
RGB	rgb(33, 128, 169)
HSL	hsl(198, 67%, 40%)
HSV	hsv(198, 80%, 66%)
CMYK	cmyk(80.5%, 24.3%, 0%, 33.7%)
CIE-LAB	lab(50.24, -12.34, -29.39)
CIE-LCH	lch(50.24, 31.87, 247.23°)
OKLab	oklab(56.56% -0.0642 -0.0828)
OKLCH	oklch(56.56% 0.105 232.2)
XYZ	xyz(15.5049, 18.6243, 40.3061)
Luminance	0.1863 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2180A9 #A94A21

analogous

#21A98E #2180A9 #213CA9

triadic

#2180A9 #A92180 #80A921

tetradic

#2180A9 #8E21A9 #A94A21 #3CA921

square

#2180A9 #8E21A9 #A94A21 #3CA921

split-complementary

#2180A9 #A9213C #A98E21

monochromatic

#0D3243 #175976 #2180A9 #31A5D7 #64BBE1

Accessibility & contrast

On white

4.44

#2180A9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#2180A9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2180A9

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2180A9	#FFFFFF	#000000	##000000
##2180A9	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)

#6B7FAB

Deuteranopia (green-blind)

#5972A8

Tritanopia (blue-blind)

#008B8E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #2180a9;
/* rgb */ color: rgb(33, 128, 169);
/* oklch */ color: oklch(56.6% 0.105 232.2);

Tailwind

colors: {
  custom: {
    50: '#73a4c2',
    500: '#2180a9',
    950: '#000000',
  },
}

SCSS

$custom: #2180a9;
$custom-light: #73a4c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2180a9",
  "rgb": {
    "r": 33,
    "g": 128,
    "b": 169
  },
  "hsl": {
    "h": 198.088,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.5656,
    "c": 0.10482,
    "h": 232.2
  },
  "luminance": 0.18626
}

Semantic roles & 50–950 ramp

primary

#2180A9

secondary

#C67F60

accent

#723EEA

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #2180A9

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

Preview Lab → · Contrast checker → · Palette generator →