#2866B0#2866B0

#2866B0 is a mid, vivid cyan. Relative luminance 0.131; OKLCH L 50.9% C 0.133 H 255.0°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#2866B0
RGB	rgb(40, 102, 176)
HSL	hsl(213, 63%, 42%)
HSV	hsv(213, 77%, 69%)
CMYK	cmyk(77.3%, 42%, 0%, 31%)
CIE-LAB	lab(42.89, 6.77, -45.06)
CIE-LCH	lch(42.89, 45.56, 278.54°)
OKLab	oklab(50.93% -0.0346 -0.1289)
OKLCH	oklch(50.93% 0.133 255)
XYZ	xyz(13.4600, 13.0869, 42.8825)
Luminance	0.1309 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2866B0 #B07228

analogous

#28AAB0 #2866B0 #2E28B0

triadic

#2866B0 #B02866 #66B028

tetradic

#2866B0 #B028AA #B07228 #28B02E

square

#2866B0 #B028AA #B07228 #28B02E

split-complementary

#2866B0 #B02E28 #AAB028

monochromatic

#112C4C #1D497E #2866B0 #4184D4 #73A4DF

Accessibility & contrast

On white

5.80

#2866B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#2866B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2866B0

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2866B0	#FFFFFF	#000000	##FFFFFF
##2866B0	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#426CB3

Deuteranopia (green-blind)

#2A60AF

Tritanopia (blue-blind)

#007782

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #2866b0;
/* rgb */ color: rgb(40, 102, 176);
/* oklch */ color: oklch(50.9% 0.133 255.0);

Tailwind

colors: {
  custom: {
    50: '#7691c8',
    500: '#2866b0',
    950: '#000000',
  },
}

SCSS

$custom: #2866b0;
$custom-light: #7691c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2866b0",
  "rgb": {
    "r": 40,
    "g": 102,
    "b": 176
  },
  "hsl": {
    "h": 212.647,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.50929,
    "c": 0.13344,
    "h": 255
  },
  "luminance": 0.13088
}

Semantic roles & 50–950 ramp

primary

#2866B0

secondary

#C69E6D

accent

#9B42E6

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2866B0

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

Preview Lab → · Contrast checker → · Palette generator →