#2879B2#2879B2

#2879B2 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.5% C 0.117 H 243.9°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#2879B2
RGB	rgb(40, 121, 178)
HSL	hsl(205, 63%, 43%)
HSV	hsv(205, 78%, 70%)
CMYK	cmyk(77.5%, 32%, 0%, 30.2%)
CIE-LAB	lab(48.68, -4.20, -37.04)
CIE-LCH	lch(48.68, 37.28, 263.52°)
OKLab	oklab(55.5% -0.0514 -0.1051)
OKLCH	oklch(55.5% 0.117 243.9)
XYZ	xyz(15.7452, 17.3383, 44.6276)
Luminance	0.1734 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2879B2 #B26128

analogous

#28B2A6 #2879B2 #2834B2

triadic

#2879B2 #B22879 #79B228

tetradic

#2879B2 #A628B2 #B26128 #34B228

square

#2879B2 #A628B2 #B26128 #34B228

split-complementary

#2879B2 #B22834 #B2A628

monochromatic

#12354E #1D5780 #2879B2 #4398D5 #75B4E0

Accessibility & contrast

On white

4.70

#2879B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#2879B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2879B2

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2879B2	#FFFFFF	#000000	##FFFFFF
##2879B2	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7BB4

Deuteranopia (green-blind)

#4B6EB1

Tritanopia (blue-blind)

#00878D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #2879b2;
/* rgb */ color: rgb(40, 121, 178);
/* oklch */ color: oklch(55.5% 0.117 243.9);

Tailwind

colors: {
  custom: {
    50: '#769fc9',
    500: '#2879b2',
    950: '#000000',
  },
}

SCSS

$custom: #2879b2;
$custom-light: #769fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#2879b2",
  "rgb": {
    "r": 40,
    "g": 121,
    "b": 178
  },
  "hsl": {
    "h": 204.783,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.55504,
    "c": 0.11699,
    "h": 243.9
  },
  "luminance": 0.1734
}

Semantic roles & 50–950 ramp

primary

#2879B2

secondary

#C7936F

accent

#8641E6

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2879B2

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

Preview Lab → · Contrast checker → · Palette generator →