#2180A2#2180A2

#2180A2 is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.2% C 0.099 H 227.3°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#2180A2
RGB	rgb(33, 128, 162)
HSL	hsl(196, 66%, 38%)
HSV	hsv(196, 80%, 64%)
CMYK	cmyk(79.6%, 21%, 0%, 36.5%)
CIE-LAB	lab(49.94, -14.83, -25.80)
CIE-LCH	lch(49.94, 29.76, 240.10°)
OKLab	oklab(56.22% -0.0668 -0.0725)
OKLCH	oklch(56.22% 0.099 227.3)
XYZ	xyz(14.8653, 18.3685, 36.9374)
Luminance	0.1837 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2180A2 #A24321

analogous

#21A283 #2180A2 #213FA2

triadic

#2180A2 #A22180 #80A221

tetradic

#2180A2 #8321A2 #A24321 #3FA221

square

#2180A2 #8321A2 #A24321 #3FA221

split-complementary

#2180A2 #A2213F #A28321

monochromatic

#0C303C #17586F #2180A2 #2CA8D4 #5FBDDE

Accessibility & contrast

On white

4.49

#2180A2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.67

#2180A2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2180A2

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2180A2	#FFFFFF	#000000	##000000
##2180A2	1.00	4.49	4.67	4.67
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7EA4

Deuteranopia (green-blind)

#5D71A2

Tritanopia (blue-blind)

#008A8B

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #2180a2;
/* rgb */ color: rgb(33, 128, 162);
/* oklch */ color: oklch(56.2% 0.099 227.3);

Tailwind

colors: {
  custom: {
    50: '#72a5bd',
    500: '#2180a2',
    950: '#000000',
  },
}

SCSS

$custom: #2180a2;
$custom-light: #72a5bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2180a2",
  "rgb": {
    "r": 33,
    "g": 128,
    "b": 162
  },
  "hsl": {
    "h": 195.814,
    "s": 66.154,
    "l": 38.235
  },
  "oklch": {
    "l": 0.56216,
    "c": 0.09859,
    "h": 227.3
  },
  "luminance": 0.1837
}

Semantic roles & 50–950 ramp

primary

#2180A2

secondary

#C3775C

accent

#6C3FE9

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #2180A2

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

Preview Lab → · Contrast checker → · Palette generator →