#4290C4#4290C4

#4290C4 is a light, moderate cyan. Relative luminance 0.251; OKLCH L 62.7% C 0.110 H 240.8°. Best body text is #000000 at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#4290C4
RGB	rgb(66, 144, 196)
HSL	hsl(204, 52%, 51%)
HSV	hsv(204, 66%, 77%)
CMYK	cmyk(66.3%, 26.5%, 0%, 23.1%)
CIE-LAB	lab(57.16, -7.52, -33.99)
CIE-LCH	lch(57.16, 34.82, 257.53°)
OKLab	oklab(62.71% -0.0534 -0.0957)
OKLCH	oklch(62.71% 0.11 240.8)
XYZ	xyz(22.1800, 25.0880, 55.8874)
Luminance	0.2509 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4290C4 #C47642

analogous

#42C4B7 #4290C4 #424FC4

triadic

#4290C4 #C44290 #90C442

tetradic

#4290C4 #B742C4 #C47642 #4FC442

square

#4290C4 #B742C4 #C47642 #4FC442

split-complementary

#4290C4 #C4424F #C4B742

monochromatic

#214D6A #306F99 #4290C4 #71ABD3 #9FC7E1

Accessibility & contrast

On white

3.49

#4290C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.02

#4290C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4290C4

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4290C4	#FFFFFF	#000000	##000000
##4290C4	1.00	3.49	6.02	6.02
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.02	21.00	1.00	1.00
##000000	6.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7890C6

Deuteranopia (green-blind)

#6684C3

Tritanopia (blue-blind)

#009DA2

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4290c4;
/* rgb */ color: rgb(66, 144, 196);
/* oklch */ color: oklch(62.7% 0.110 240.8);

Tailwind

colors: {
  custom: {
    50: '#84b0d6',
    500: '#4290c4',
    950: '#000000',
  },
}

SCSS

$custom: #4290c4;
$custom-light: #84b0d6;
$custom-dark: #000000;

JSON

{
  "hex": "#4290c4",
  "rgb": {
    "r": 66,
    "g": 144,
    "b": 196
  },
  "hsl": {
    "h": 204,
    "s": 52.419,
    "l": 51.373
  },
  "oklch": {
    "l": 0.62705,
    "c": 0.10961,
    "h": 240.8
  },
  "luminance": 0.2509
}

Semantic roles & 50–950 ramp

primary

#4290C4

secondary

#CEAB94

accent

#864CDC

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #4290C4

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

Preview Lab → · Contrast checker → · Palette generator →