#4290C8#4290C8

#4290C8 is a light, moderate cyan. Relative luminance 0.253; OKLCH L 62.9% C 0.114 H 242.8°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#4290C8
RGB	rgb(66, 144, 200)
HSL	hsl(205, 55%, 52%)
HSV	hsv(205, 67%, 78%)
CMYK	cmyk(67%, 28%, 0%, 21.6%)
CIE-LAB	lab(57.34, -6.17, -35.97)
CIE-LCH	lch(57.34, 36.50, 260.27°)
OKLab	oklab(62.91% -0.0521 -0.1014)
OKLCH	oklch(62.91% 0.114 242.8)
XYZ	xyz(22.6414, 25.2725, 58.3172)
Luminance	0.2527 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4290C8 #C87A42

analogous

#42C8BD #4290C8 #424DC8

triadic

#4290C8 #C84290 #90C842

tetradic

#4290C8 #BD42C8 #C87A42 #4DC842

square

#4290C8 #BD42C8 #C87A42 #4DC842

split-complementary

#4290C8 #C8424D #C8BD42

monochromatic

#204E6F #2E709F #4290C8 #71ACD6 #A1C8E4

Accessibility & contrast

On white

3.47

#4290C8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#4290C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4290C8

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4290C8	#FFFFFF	#000000	##000000
##4290C8	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7791CB

Deuteranopia (green-blind)

#6484C7

Tritanopia (blue-blind)

#009EA3

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #4290c8;
/* rgb */ color: rgb(66, 144, 200);
/* oklch */ color: oklch(62.9% 0.114 242.8);

Tailwind

colors: {
  custom: {
    50: '#85b0d9',
    500: '#4290c8',
    950: '#000000',
  },
}

SCSS

$custom: #4290c8;
$custom-light: #85b0d9;
$custom-dark: #000000;

JSON

{
  "hex": "#4290c8",
  "rgb": {
    "r": 66,
    "g": 144,
    "b": 200
  },
  "hsl": {
    "h": 205.075,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.62906,
    "c": 0.11406,
    "h": 242.8
  },
  "luminance": 0.25275
}

Semantic roles & 50–950 ramp

primary

#4290C8

secondary

#D0AE96

accent

#884ADE

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #4290C8

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

Preview Lab → · Contrast checker → · Palette generator →