#2879B0#2879B0

#2879B0 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.4% C 0.115 H 243.0°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#2879B0
RGB	rgb(40, 121, 176)
HSL	hsl(204, 63%, 42%)
HSV	hsv(204, 77%, 69%)
CMYK	cmyk(77.3%, 31.3%, 0%, 31%)
CIE-LAB	lab(48.58, -4.94, -36.04)
CIE-LCH	lch(48.58, 36.37, 262.19°)
OKLab	oklab(55.39% -0.0521 -0.1021)
OKLCH	oklch(55.39% 0.115 243)
XYZ	xyz(15.5459, 17.2586, 43.5778)
Luminance	0.1726 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2879B0 #B05F28

analogous

#28B0A3 #2879B0 #2835B0

triadic

#2879B0 #B02879 #79B028

tetradic

#2879B0 #A328B0 #B05F28 #35B028

square

#2879B0 #A328B0 #B05F28 #35B028

split-complementary

#2879B0 #B02835 #B0A328

monochromatic

#11344C #1D577E #2879B0 #4199D4 #73B4DF

Accessibility & contrast

On white

4.72

#2879B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#2879B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2879B0

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2879B0	#FFFFFF	#000000	##FFFFFF
##2879B0	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7AB2

Deuteranopia (green-blind)

#4D6EAF

Tritanopia (blue-blind)

#00878C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #2879b0;
/* rgb */ color: rgb(40, 121, 176);
/* oklch */ color: oklch(55.4% 0.115 243.0);

Tailwind

colors: {
  custom: {
    50: '#769fc8',
    500: '#2879b0',
    950: '#000000',
  },
}

SCSS

$custom: #2879b0;
$custom-light: #769fc8;
$custom-dark: #000000;

JSON

{
  "hex": "#2879b0",
  "rgb": {
    "r": 40,
    "g": 121,
    "b": 176
  },
  "hsl": {
    "h": 204.265,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.55393,
    "c": 0.11466,
    "h": 243
  },
  "luminance": 0.1726
}

Semantic roles & 50–950 ramp

primary

#2879B0

secondary

#C6916D

accent

#8442E6

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2879B0

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

Preview Lab → · Contrast checker → · Palette generator →