#2877BD#2877BD

#2877BD is a mid, vivid cyan. Relative luminance 0.173; OKLCH L 55.7% C 0.132 H 249.4°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#2877BD
RGB	rgb(40, 119, 189)
HSL	hsl(208, 65%, 45%)
HSV	hsv(208, 79%, 74%)
CMYK	cmyk(78.8%, 37%, 0%, 25.9%)
CIE-LAB	lab(48.66, 1.09, -43.44)
CIE-LCH	lch(48.66, 43.45, 271.44°)
OKLab	oklab(55.67% -0.0465 -0.1238)
OKLCH	oklch(55.67% 0.132 249.4)
XYZ	xyz(16.6537, 17.3169, 50.5990)
Luminance	0.1732 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2877BD #BD6E28

analogous

#28BDB9 #2877BD #282CBD

triadic

#2877BD #BD2877 #77BD28

tetradic

#2877BD #B928BD #BD6E28 #2CBD28

square

#2877BD #B928BD #BD6E28 #2CBD28

split-complementary

#2877BD #BD282C #BDB928

monochromatic

#133758 #1D578A #2877BD #4A95D9 #7CB3E3

Accessibility & contrast

On white

4.70

#2877BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#2877BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2877BD

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2877BD	#FFFFFF	#000000	##FFFFFF
##2877BD	1.00	4.70	4.46	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#567BC0

Deuteranopia (green-blind)

#406DBC

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #2877bd;
/* rgb */ color: rgb(40, 119, 189);
/* oklch */ color: oklch(55.7% 0.132 249.4);

Tailwind

colors: {
  custom: {
    50: '#799dd1',
    500: '#2877bd',
    950: '#000000',
  },
}

SCSS

$custom: #2877bd;
$custom-light: #799dd1;
$custom-dark: #000000;

JSON

{
  "hex": "#2877bd",
  "rgb": {
    "r": 40,
    "g": 119,
    "b": 189
  },
  "hsl": {
    "h": 208.188,
    "s": 65.066,
    "l": 44.902
  },
  "oklch": {
    "l": 0.5567,
    "c": 0.13225,
    "h": 249.4
  },
  "luminance": 0.17319
}

Semantic roles & 50–950 ramp

primary

#2877BD

secondary

#CB9E75

accent

#8F40E8

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0E14

muted

#7C7E82

Preview Lab

Preview with #2877BD

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

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