#3990BC#3990BC

#3990BC is a light, moderate cyan. Relative luminance 0.244; OKLCH L 62.0% C 0.105 H 234.3°. Best body text is #000000 at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#3990BC
RGB	rgb(57, 144, 188)
HSL	hsl(200, 53%, 48%)
HSV	hsv(200, 70%, 74%)
CMYK	cmyk(69.7%, 23.4%, 0%, 26.3%)
CIE-LAB	lab(56.53, -11.64, -30.46)
CIE-LCH	lch(56.53, 32.61, 249.09°)
OKLab	oklab(62.01% -0.0616 -0.0856)
OKLCH	oklch(62.01% 0.105 234.3)
XYZ	xyz(20.7341, 24.4449, 51.1928)
Luminance	0.2445 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3990BC #BC6539

analogous

#39BCA6 #3990BC #394EBC

triadic

#3990BC #BC3990 #90BC39

tetradic

#3990BC #A639BC #BC6539 #4EBC39

square

#3990BC #A639BC #BC6539 #4EBC39

split-complementary

#3990BC #BC394E #BCA639

monochromatic

#1D485E #2B6C8D #3990BC #63ABD0 #92C4DE

Accessibility & contrast

On white

3.57

#3990BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.89

#3990BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3990BC

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3990BC	#FFFFFF	#000000	##000000
##3990BC	1.00	3.57	5.89	5.89
#FFFFFF	3.57	1.00	21.00	21.00
#000000	5.89	21.00	1.00	1.00
##000000	5.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8FBE

Deuteranopia (green-blind)

#6982BB

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3990bc;
/* rgb */ color: rgb(57, 144, 188);
/* oklch */ color: oklch(62.0% 0.105 234.3);

Tailwind

colors: {
  custom: {
    50: '#7fb0d0',
    500: '#3990bc',
    950: '#000000',
  },
}

SCSS

$custom: #3990bc;
$custom-light: #7fb0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3990bc",
  "rgb": {
    "r": 57,
    "g": 144,
    "b": 188
  },
  "hsl": {
    "h": 200.153,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.6201,
    "c": 0.10547,
    "h": 234.3
  },
  "luminance": 0.24447
}

Semantic roles & 50–950 ramp

primary

#3990BC

secondary

#C99E88

accent

#7C4BDD

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3990BC

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

Preview Lab → · Contrast checker → · Palette generator →