#4290C6#4290C6

#4290C6 is a light, moderate cyan. Relative luminance 0.252; OKLCH L 62.8% C 0.112 H 241.9°. Best body text is #000000 at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#4290C6
RGB	rgb(66, 144, 198)
HSL	hsl(205, 54%, 52%)
HSV	hsv(205, 67%, 78%)
CMYK	cmyk(66.7%, 27.3%, 0%, 22.4%)
CIE-LAB	lab(57.25, -6.85, -34.98)
CIE-LCH	lch(57.25, 35.65, 258.93°)
OKLab	oklab(62.81% -0.0527 -0.0986)
OKLCH	oklch(62.81% 0.112 241.9)
XYZ	xyz(22.4092, 25.1796, 57.0943)
Luminance	0.2518 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4290C6 #C67842

analogous

#42C6BA #4290C6 #424EC6

triadic

#4290C6 #C64290 #90C642

tetradic

#4290C6 #BA42C6 #C67842 #4EC642

square

#4290C6 #BA42C6 #C67842 #4EC642

split-complementary

#4290C6 #C6424E #C6BA42

monochromatic

#214E6D #2F6F9C #4290C6 #71ACD4 #A0C7E2

Accessibility & contrast

On white

3.48

#4290C6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.04

#4290C6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4290C6

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4290C6	#FFFFFF	#000000	##000000
##4290C6	1.00	3.48	6.04	6.04
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.04	21.00	1.00	1.00
##000000	6.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7891C8

Deuteranopia (green-blind)

#6584C5

Tritanopia (blue-blind)

#009DA3

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4290c6;
/* rgb */ color: rgb(66, 144, 198);
/* oklch */ color: oklch(62.8% 0.112 241.9);

Tailwind

colors: {
  custom: {
    50: '#84b0d7',
    500: '#4290c6',
    950: '#000000',
  },
}

SCSS

$custom: #4290c6;
$custom-light: #84b0d7;
$custom-dark: #000000;

JSON

{
  "hex": "#4290c6",
  "rgb": {
    "r": 66,
    "g": 144,
    "b": 198
  },
  "hsl": {
    "h": 204.545,
    "s": 53.659,
    "l": 51.765
  },
  "oklch": {
    "l": 0.62805,
    "c": 0.11181,
    "h": 241.9
  },
  "luminance": 0.25182
}

Semantic roles & 50–950 ramp

primary

#4290C6

secondary

#CFAD95

accent

#874BDD

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #4290C6

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

Preview Lab → · Contrast checker → · Palette generator →