#2877B0#2877B0

#2877B0 is a mid, moderate cyan. Relative luminance 0.168; OKLCH L 54.9% C 0.116 H 244.4°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#2877B0
RGB	rgb(40, 119, 176)
HSL	hsl(205, 63%, 42%)
HSV	hsv(205, 77%, 69%)
CMYK	cmyk(77.3%, 32.4%, 0%, 31%)
CIE-LAB	lab(47.98, -3.75, -36.99)
CIE-LCH	lch(47.98, 37.18, 264.22°)
OKLab	oklab(54.92% -0.0502 -0.105)
OKLCH	oklch(54.92% 0.116 244.4)
XYZ	xyz(15.3053, 16.7775, 43.4976)
Luminance	0.1678 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2877B0 #B06128

analogous

#28B0A5 #2877B0 #2833B0

triadic

#2877B0 #B02877 #77B028

tetradic

#2877B0 #A528B0 #B06128 #33B028

square

#2877B0 #A528B0 #B06128 #33B028

split-complementary

#2877B0 #B02833 #B0A528

monochromatic

#11344C #1D557E #2877B0 #4196D4 #73B2DF

Accessibility & contrast

On white

4.82

#2877B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#2877B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2877B0

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2877B0	#FFFFFF	#000000	##FFFFFF
##2877B0	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D79B2

Deuteranopia (green-blind)

#4A6CAF

Tritanopia (blue-blind)

#00858B

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #2877b0;
/* rgb */ color: rgb(40, 119, 176);
/* oklch */ color: oklch(54.9% 0.116 244.4);

Tailwind

colors: {
  custom: {
    50: '#769ec8',
    500: '#2877b0',
    950: '#000000',
  },
}

SCSS

$custom: #2877b0;
$custom-light: #769ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#2877b0",
  "rgb": {
    "r": 40,
    "g": 119,
    "b": 176
  },
  "hsl": {
    "h": 205.147,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.54915,
    "c": 0.11634,
    "h": 244.4
  },
  "luminance": 0.16779
}

Semantic roles & 50–950 ramp

primary

#2877B0

secondary

#C6936D

accent

#8742E6

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2877B0

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

Preview Lab → · Contrast checker → · Palette generator →