#2866B2#2866B2

#2866B2 is a mid, vivid cyan. Relative luminance 0.132; OKLCH L 51.1% C 0.136 H 255.4°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#2866B2
RGB	rgb(40, 102, 178)
HSL	hsl(213, 63%, 43%)
HSV	hsv(213, 78%, 70%)
CMYK	cmyk(77.5%, 42.7%, 0%, 30.2%)
CIE-LAB	lab(43.01, 7.53, -46.04)
CIE-LCH	lch(43.01, 46.65, 279.29°)
OKLab	oklab(51.06% -0.0342 -0.1318)
OKLCH	oklch(51.06% 0.136 255.4)
XYZ	xyz(13.6593, 13.1666, 43.9324)
Luminance	0.1317 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2866B2 #B27428

analogous

#28ABB2 #2866B2 #2F28B2

triadic

#2866B2 #B22866 #66B228

tetradic

#2866B2 #B228AB #B27428 #28B22F

square

#2866B2 #B228AB #B27428 #28B22F

split-complementary

#2866B2 #B22F28 #ABB228

monochromatic

#122D4E #1D4980 #2866B2 #4384D5 #75A5E0

Accessibility & contrast

On white

5.78

#2866B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#2866B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2866B2

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2866B2	#FFFFFF	#000000	##FFFFFF
##2866B2	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#406CB5

Deuteranopia (green-blind)

#2760B0

Tritanopia (blue-blind)

#007883

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #2866b2;
/* rgb */ color: rgb(40, 102, 178);
/* oklch */ color: oklch(51.1% 0.136 255.4);

Tailwind

colors: {
  custom: {
    50: '#7691c9',
    500: '#2866b2',
    950: '#000000',
  },
}

SCSS

$custom: #2866b2;
$custom-light: #7691c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2866b2",
  "rgb": {
    "r": 40,
    "g": 102,
    "b": 178
  },
  "hsl": {
    "h": 213.043,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.51061,
    "c": 0.13613,
    "h": 255.4
  },
  "luminance": 0.13168
}

Semantic roles & 50–950 ramp

primary

#2866B2

secondary

#C79F6F

accent

#9C41E6

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2866B2

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

Preview Lab → · Contrast checker → · Palette generator →