#3990CA#3990CA

#3990CA is a light, vivid cyan. Relative luminance 0.251; OKLCH L 62.7% C 0.120 H 241.7°. Best body text is #000000 at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#3990CA
RGB	rgb(57, 144, 202)
HSL	hsl(204, 58%, 51%)
HSV	hsv(204, 72%, 79%)
CMYK	cmyk(71.8%, 28.7%, 0%, 20.8%)
CIE-LAB	lab(57.15, -6.84, -37.42)
CIE-LCH	lch(57.15, 38.04, 259.63°)
OKLab	oklab(62.71% -0.0569 -0.1057)
OKLCH	oklch(62.71% 0.12 241.7)
XYZ	xyz(22.3171, 25.0781, 59.5301)
Luminance	0.2508 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3990CA #CA7339

analogous

#39CABB #3990CA #3947CA

triadic

#3990CA #CA3990 #90CA39

tetradic

#3990CA #BB39CA #CA7339 #47CA39

square

#3990CA #BB39CA #CA7339 #47CA39

split-complementary

#3990CA #CA3947 #CABB39

monochromatic

#1D4C6C #2A6E9C #3990CA #69ABD7 #9AC6E4

Accessibility & contrast

On white

3.49

#3990CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.02

#3990CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3990CA

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3990CA	#FFFFFF	#000000	##000000
##3990CA	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)

#7591CD

Deuteranopia (green-blind)

#6183C9

Tritanopia (blue-blind)

#009EA4

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #3990ca;
/* rgb */ color: rgb(57, 144, 202);
/* oklch */ color: oklch(62.7% 0.120 241.7);

Tailwind

colors: {
  custom: {
    50: '#81b0da',
    500: '#3990ca',
    950: '#000000',
  },
}

SCSS

$custom: #3990ca;
$custom-light: #81b0da;
$custom-dark: #000000;

JSON

{
  "hex": "#3990ca",
  "rgb": {
    "r": 57,
    "g": 144,
    "b": 202
  },
  "hsl": {
    "h": 204,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.62708,
    "c": 0.12008,
    "h": 241.7
  },
  "luminance": 0.25081
}

Semantic roles & 50–950 ramp

primary

#3990CA

secondary

#D0A98F

accent

#8447E1

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3990CA

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

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