#4291E9#4291E9

#4291E9 is a light, vivid cyan. Relative luminance 0.273; OKLCH L 64.9% C 0.153 H 253.3°. Best body text is #000000 at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#4291E9
RGB	rgb(66, 145, 233)
HSL	hsl(212, 79%, 59%)
HSV	hsv(212, 72%, 91%)
CMYK	cmyk(71.7%, 37.8%, 0%, 8.6%)
CIE-LAB	lab(59.24, 4.67, -51.43)
CIE-LCH	lch(59.24, 51.64, 275.19°)
OKLab	oklab(64.93% -0.044 -0.1465)
OKLCH	oklch(64.93% 0.153 253.3)
XYZ	xyz(27.0747, 27.2892, 80.9154)
Luminance	0.2729 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4291E9 #E99A42

analogous

#42E4E9 #4291E9 #4642E9

triadic

#4291E9 #E94291 #91E942

tetradic

#4291E9 #E942E4 #E99A42 #42E946

square

#4291E9 #E942E4 #E99A42 #42E946

split-complementary

#4291E9 #E94642 #E4E942

monochromatic

#12559E #1972D5 #4291E9 #79B1EF #B0D1F6

Accessibility & contrast

On white

3.25

#4291E9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.46

#4291E9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4291E9

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4291E9	#FFFFFF	#000000	##000000
##4291E9	1.00	3.25	6.46	6.46
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.46	21.00	1.00	1.00
##000000	6.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6897ED

Deuteranopia (green-blind)

#4F88E7

Tritanopia (blue-blind)

#00A6B2

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #4291e9;
/* rgb */ color: rgb(66, 145, 233);
/* oklch */ color: oklch(64.9% 0.153 253.3);

Tailwind

colors: {
  custom: {
    50: '#8ab0f0',
    500: '#4291e9',
    950: '#000000',
  },
}

SCSS

$custom: #4291e9;
$custom-light: #8ab0f0;
$custom-dark: #000000;

JSON

{
  "hex": "#4291e9",
  "rgb": {
    "r": 66,
    "g": 145,
    "b": 233
  },
  "hsl": {
    "h": 211.617,
    "s": 79.147,
    "l": 58.627
  },
  "oklch": {
    "l": 0.64927,
    "c": 0.15299,
    "h": 253.3
  },
  "luminance": 0.27292
}

Semantic roles & 50–950 ramp

primary

#4291E9

secondary

#E4C5A2

accent

#9932F6

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4291E9

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

Preview Lab → · Contrast checker → · Palette generator →