#3990BE#3990BE

#3990BE is a light, moderate cyan. Relative luminance 0.245; OKLCH L 62.1% C 0.107 H 235.5°. Best body text is #000000 at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#3990BE
RGB	rgb(57, 144, 190)
HSL	hsl(201, 54%, 48%)
HSV	hsv(201, 70%, 75%)
CMYK	cmyk(70%, 24.2%, 0%, 25.5%)
CIE-LAB	lab(56.62, -10.96, -31.47)
CIE-LCH	lch(56.62, 33.32, 250.79°)
OKLab	oklab(62.11% -0.0609 -0.0885)
OKLCH	oklch(62.11% 0.107 235.5)
XYZ	xyz(20.9512, 24.5318, 52.3361)
Luminance	0.2453 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3990BE #BE6739

analogous

#39BEA9 #3990BE #394DBE

triadic

#3990BE #BE3990 #90BE39

tetradic

#3990BE #A939BE #BE6739 #4DBE39

square

#3990BE #A939BE #BE6739 #4DBE39

split-complementary

#3990BE #BE394D #BEA939

monochromatic

#1D4960 #2B6C8F #3990BE #64ABD0 #93C4DF

Accessibility & contrast

On white

3.56

#3990BE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.91

#3990BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3990BE

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3990BE	#FFFFFF	#000000	##000000
##3990BE	1.00	3.56	5.91	5.91
#FFFFFF	3.56	1.00	21.00	21.00
#000000	5.91	21.00	1.00	1.00
##000000	5.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8FC0

Deuteranopia (green-blind)

#6882BD

Tritanopia (blue-blind)

#009CA0

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3990be;
/* rgb */ color: rgb(57, 144, 190);
/* oklch */ color: oklch(62.1% 0.107 235.5);

Tailwind

colors: {
  custom: {
    50: '#7fb0d1',
    500: '#3990be',
    950: '#000000',
  },
}

SCSS

$custom: #3990be;
$custom-light: #7fb0d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3990be",
  "rgb": {
    "r": 57,
    "g": 144,
    "b": 190
  },
  "hsl": {
    "h": 200.752,
    "s": 53.846,
    "l": 48.431
  },
  "oklch": {
    "l": 0.62107,
    "c": 0.10742,
    "h": 235.5
  },
  "luminance": 0.24534
}

Semantic roles & 50–950 ramp

primary

#3990BE

secondary

#CA9F89

accent

#7D4BDD

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3990BE

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

Preview Lab → · Contrast checker → · Palette generator →