#2180BD#2180BD

#2180BD is a mid, vivid cyan. Relative luminance 0.194; OKLCH L 57.6% C 0.126 H 242.8°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#2180BD
RGB	rgb(33, 128, 189)
HSL	hsl(203, 70%, 44%)
HSV	hsv(203, 83%, 74%)
CMYK	cmyk(82.5%, 32.3%, 0%, 25.9%)
CIE-LAB	lab(51.19, -5.01, -39.44)
CIE-LCH	lch(51.19, 39.75, 262.75°)
OKLab	oklab(57.62% -0.0576 -0.112)
OKLCH	oklch(57.62% 0.126 242.8)
XYZ	xyz(17.5281, 19.4336, 50.9615)
Luminance	0.1944 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2180BD #BD5E21

analogous

#21BDAC #2180BD #2132BD

triadic

#2180BD #BD2180 #80BD21

tetradic

#2180BD #AC21BD #BD5E21 #32BD21

square

#2180BD #AC21BD #BD5E21 #32BD21

split-complementary

#2180BD #BD2132 #BDAC21

monochromatic

#0F3955 #185D89 #2180BD #3E9FDD #72B9E6

Accessibility & contrast

On white

4.30

#2180BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#2180BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2180BD

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2180BD	#FFFFFF	#000000	##000000
##2180BD	1.00	4.30	4.89	4.89
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6382C0

Deuteranopia (green-blind)

#4E74BC

Tritanopia (blue-blind)

#008F96

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #2180bd;
/* rgb */ color: rgb(33, 128, 189);
/* oklch */ color: oklch(57.6% 0.126 242.8);

Tailwind

colors: {
  custom: {
    50: '#77a4d1',
    500: '#2180bd',
    950: '#000000',
  },
}

SCSS

$custom: #2180bd;
$custom-light: #77a4d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2180bd",
  "rgb": {
    "r": 33,
    "g": 128,
    "b": 189
  },
  "hsl": {
    "h": 203.462,
    "s": 70.27,
    "l": 43.529
  },
  "oklch": {
    "l": 0.57622,
    "c": 0.12596,
    "h": 242.8
  },
  "luminance": 0.19436
}

Semantic roles & 50–950 ramp

primary

#2180BD

secondary

#CD926D

accent

#803BED

background

#F7FAFC

surface

#EEF4F9

border

#C9CED2

text

#0A0F14

muted

#7C7F82

Preview Lab

Preview with #2180BD

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

Preview Lab → · Contrast checker → · Palette generator →