#2877B1#2877B1

#2877B1 is a mid, moderate cyan. Relative luminance 0.168; OKLCH L 55.0% C 0.118 H 244.9°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#2877B1
RGB	rgb(40, 119, 177)
HSL	hsl(205, 63%, 43%)
HSV	hsv(205, 77%, 69%)
CMYK	cmyk(77.4%, 32.8%, 0%, 30.6%)
CIE-LAB	lab(48.03, -3.38, -37.49)
CIE-LCH	lch(48.03, 37.64, 264.85°)
OKLab	oklab(54.97% -0.0499 -0.1064)
OKLCH	oklch(54.97% 0.118 244.9)
XYZ	xyz(15.4046, 16.8173, 44.0206)
Luminance	0.1682 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2877B1 #B16228

analogous

#28B1A6 #2877B1 #2833B1

triadic

#2877B1 #B12877 #77B128

tetradic

#2877B1 #A628B1 #B16228 #33B128

square

#2877B1 #A628B1 #B16228 #33B128

split-complementary

#2877B1 #B12833 #B1A628

monochromatic

#11344D #1D557F #2877B1 #4296D4 #74B2E0

Accessibility & contrast

On white

4.81

#2877B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#2877B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2877B1

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2877B1	#FFFFFF	#000000	##FFFFFF
##2877B1	1.00	4.81	4.36	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C79B3

Deuteranopia (green-blind)

#496CB0

Tritanopia (blue-blind)

#00858C

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #2877b1;
/* rgb */ color: rgb(40, 119, 177);
/* oklch */ color: oklch(55.0% 0.118 244.9);

Tailwind

colors: {
  custom: {
    50: '#769ec8',
    500: '#2877b1',
    950: '#000000',
  },
}

SCSS

$custom: #2877b1;
$custom-light: #769ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#2877b1",
  "rgb": {
    "r": 40,
    "g": 119,
    "b": 177
  },
  "hsl": {
    "h": 205.401,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.54971,
    "c": 0.11753,
    "h": 244.9
  },
  "luminance": 0.16819
}

Semantic roles & 50–950 ramp

primary

#2877B1

secondary

#C7946E

accent

#8742E6

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2877B1

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

Preview Lab → · Contrast checker → · Palette generator →