#3990BF#3990BF

#3990BF is a light, moderate cyan. Relative luminance 0.246; OKLCH L 62.2% C 0.108 H 236.1°. Best body text is #000000 at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#3990BF
RGB	rgb(57, 144, 191)
HSL	hsl(201, 54%, 49%)
HSV	hsv(201, 70%, 75%)
CMYK	cmyk(70.2%, 24.6%, 0%, 25.1%)
CIE-LAB	lab(56.66, -10.62, -31.97)
CIE-LCH	lch(56.66, 33.69, 251.61°)
OKLab	oklab(62.16% -0.0605 -0.0899)
OKLCH	oklch(62.16% 0.108 236.1)
XYZ	xyz(21.0609, 24.5756, 52.9137)
Luminance	0.2458 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3990BF #BF6839

analogous

#39BFAB #3990BF #394DBF

triadic

#3990BF #BF3990 #90BF39

tetradic

#3990BF #AB39BF #BF6839 #4DBF39

square

#3990BF #AB39BF #BF6839 #4DBF39

split-complementary

#3990BF #BF394D #BFAB39

monochromatic

#1D4961 #2B6C90 #3990BF #64ABD1 #93C4DF

Accessibility & contrast

On white

3.55

#3990BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.92

#3990BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3990BF

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3990BF	#FFFFFF	#000000	##000000
##3990BF	1.00	3.55	5.92	5.92
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.92	21.00	1.00	1.00
##000000	5.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8FC1

Deuteranopia (green-blind)

#6782BE

Tritanopia (blue-blind)

#009CA0

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3990bf;
/* rgb */ color: rgb(57, 144, 191);
/* oklch */ color: oklch(62.2% 0.108 236.1);

Tailwind

colors: {
  custom: {
    50: '#80b0d2',
    500: '#3990bf',
    950: '#000000',
  },
}

SCSS

$custom: #3990bf;
$custom-light: #80b0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3990bf",
  "rgb": {
    "r": 57,
    "g": 144,
    "b": 191
  },
  "hsl": {
    "h": 201.045,
    "s": 54.032,
    "l": 48.627
  },
  "oklch": {
    "l": 0.62156,
    "c": 0.10843,
    "h": 236.1
  },
  "luminance": 0.24578
}

Semantic roles & 50–950 ramp

primary

#3990BF

secondary

#CAA08A

accent

#7E4ADD

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3990BF

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

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