#2878BD#2878BD

#2878BD is a mid, vivid cyan. Relative luminance 0.176; OKLCH L 55.9% C 0.131 H 248.8°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#2878BD
RGB	rgb(40, 120, 189)
HSL	hsl(208, 65%, 45%)
HSV	hsv(208, 79%, 74%)
CMYK	cmyk(78.8%, 36.5%, 0%, 25.9%)
CIE-LAB	lab(48.95, 0.48, -42.97)
CIE-LCH	lch(48.95, 42.97, 270.65°)
OKLab	oklab(55.9% -0.0474 -0.1224)
OKLCH	oklch(55.9% 0.131 248.8)
XYZ	xyz(16.7733, 17.5562, 50.6389)
Luminance	0.1756 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2878BD #BD6D28

analogous

#28BDB8 #2878BD #282EBD

triadic

#2878BD #BD2878 #78BD28

tetradic

#2878BD #B828BD #BD6D28 #2EBD28

square

#2878BD #B828BD #BD6D28 #2EBD28

split-complementary

#2878BD #BD282E #BDB828

monochromatic

#133858 #1D588A #2878BD #4A96D9 #7CB4E3

Accessibility & contrast

On white

4.65

#2878BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#2878BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #2878BD

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2878BD	#FFFFFF	#000000	##FFFFFF
##2878BD	1.00	4.65	4.51	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#587CC0

Deuteranopia (green-blind)

#416EBC

Tritanopia (blue-blind)

#008991

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #2878bd;
/* rgb */ color: rgb(40, 120, 189);
/* oklch */ color: oklch(55.9% 0.131 248.8);

Tailwind

colors: {
  custom: {
    50: '#799ed1',
    500: '#2878bd',
    950: '#000000',
  },
}

SCSS

$custom: #2878bd;
$custom-light: #799ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#2878bd",
  "rgb": {
    "r": 40,
    "g": 120,
    "b": 189
  },
  "hsl": {
    "h": 207.785,
    "s": 65.066,
    "l": 44.902
  },
  "oklch": {
    "l": 0.55903,
    "c": 0.13126,
    "h": 248.8
  },
  "luminance": 0.17558
}

Semantic roles & 50–950 ramp

primary

#2878BD

secondary

#CB9D75

accent

#8E40E8

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0E14

muted

#7C7E82

Preview Lab

Preview with #2878BD

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

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