#2866B4#2866B4

#2866B4 is a mid, vivid cyan. Relative luminance 0.132; OKLCH L 51.2% C 0.139 H 255.9°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#2866B4
RGB	rgb(40, 102, 180)
HSL	hsl(213, 64%, 43%)
HSV	hsv(213, 78%, 71%)
CMYK	cmyk(77.8%, 43.3%, 0%, 29.4%)
CIE-LAB	lab(43.13, 8.30, -47.02)
CIE-LCH	lch(43.13, 47.74, 280.01°)
OKLab	oklab(51.19% -0.0338 -0.1346)
OKLCH	oklch(51.19% 0.139 255.9)
XYZ	xyz(13.8616, 13.2475, 44.9976)
Luminance	0.1325 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2866B4 #B47628

analogous

#28ACB4 #2866B4 #3028B4

triadic

#2866B4 #B42866 #66B428

tetradic

#2866B4 #B428AC #B47628 #28B430

square

#2866B4 #B428AC #B47628 #28B430

split-complementary

#2866B4 #B43028 #ACB428

monochromatic

#122D50 #1D4A82 #2866B4 #4484D5 #76A5E1

Accessibility & contrast

On white

5.75

#2866B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#2866B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2866B4

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2866B4	#FFFFFF	#000000	##FFFFFF
##2866B4	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F6DB7

Deuteranopia (green-blind)

#2560B2

Tritanopia (blue-blind)

#007884

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #2866b4;
/* rgb */ color: rgb(40, 102, 180);
/* oklch */ color: oklch(51.2% 0.139 255.9);

Tailwind

colors: {
  custom: {
    50: '#7791cb',
    500: '#2866b4',
    950: '#000000',
  },
}

SCSS

$custom: #2866b4;
$custom-light: #7791cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2866b4",
  "rgb": {
    "r": 40,
    "g": 102,
    "b": 180
  },
  "hsl": {
    "h": 213.429,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.51193,
    "c": 0.1388,
    "h": 255.9
  },
  "luminance": 0.13249
}

Semantic roles & 50–950 ramp

primary

#2866B4

secondary

#C8A170

accent

#9D41E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2866B4

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

Preview Lab → · Contrast checker → · Palette generator →