#4290CA#4290CA

#4290CA is a light, moderate cyan. Relative luminance 0.254; OKLCH L 63.0% C 0.116 H 243.7°. Best body text is #000000 at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#4290CA
RGB	rgb(66, 144, 202)
HSL	hsl(206, 56%, 53%)
HSV	hsv(206, 67%, 79%)
CMYK	cmyk(67.3%, 28.7%, 0%, 20.8%)
CIE-LAB	lab(57.43, -5.49, -36.96)
CIE-LCH	lch(57.43, 37.36, 261.55°)
OKLab	oklab(63.01% -0.0515 -0.1043)
OKLCH	oklch(63.01% 0.116 243.7)
XYZ	xyz(22.8766, 25.3666, 59.5563)
Luminance	0.2537 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4290CA #CA7C42

analogous

#42CAC0 #4290CA #424CCA

triadic

#4290CA #CA4290 #90CA42

tetradic

#4290CA #C042CA #CA7C42 #4CCA42

square

#4290CA #C042CA #CA7C42 #4CCA42

split-complementary

#4290CA #CA424C #CAC042

monochromatic

#204F72 #2D70A2 #4290CA #72ACD7 #A2C8E5

Accessibility & contrast

On white

3.46

#4290CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.07

#4290CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4290CA

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4290CA	#FFFFFF	#000000	##000000
##4290CA	1.00	3.46	6.07	6.07
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.07	21.00	1.00	1.00
##000000	6.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7691CD

Deuteranopia (green-blind)

#6384C9

Tritanopia (blue-blind)

#009EA4

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #4290ca;
/* rgb */ color: rgb(66, 144, 202);
/* oklch */ color: oklch(63.0% 0.116 243.7);

Tailwind

colors: {
  custom: {
    50: '#85b0da',
    500: '#4290ca',
    950: '#000000',
  },
}

SCSS

$custom: #4290ca;
$custom-light: #85b0da;
$custom-dark: #000000;

JSON

{
  "hex": "#4290ca",
  "rgb": {
    "r": 66,
    "g": 144,
    "b": 202
  },
  "hsl": {
    "h": 205.588,
    "s": 56.198,
    "l": 52.549
  },
  "oklch": {
    "l": 0.63007,
    "c": 0.11633,
    "h": 243.7
  },
  "luminance": 0.25369
}

Semantic roles & 50–950 ramp

primary

#4290CA

secondary

#D1B096

accent

#8948DF

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4290CA

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

Preview Lab → · Contrast checker → · Palette generator →