#3997D4#3997D4

#3997D4 is a light, vivid cyan. Relative luminance 0.278; OKLCH L 64.8% C 0.126 H 241.3°. Best body text is #000000 at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#3997D4
RGB	rgb(57, 151, 212)
HSL	hsl(204, 64%, 53%)
HSV	hsv(204, 73%, 83%)
CMYK	cmyk(73.1%, 28.8%, 0%, 16.9%)
CIE-LAB	lab(59.67, -7.36, -39.09)
CIE-LCH	lch(59.67, 39.78, 259.34°)
OKLab	oklab(64.85% -0.0605 -0.1105)
OKLCH	oklch(64.85% 0.126 241.3)
XYZ	xyz(24.6330, 27.7537, 66.3334)
Luminance	0.2776 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3997D4 #D47639

analogous

#39D4C3 #3997D4 #3949D4

triadic

#3997D4 #D43997 #97D439

tetradic

#3997D4 #C339D4 #D47639 #49D439

square

#3997D4 #C339D4 #D47639 #49D439

split-complementary

#3997D4 #D43949 #D4C339

monochromatic

#1A5378 #2576AB #3997D4 #6BB1DF #9ECCEA

Accessibility & contrast

On white

3.21

#3997D4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.55

#3997D4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3997D4

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3997D4	#FFFFFF	#000000	##000000
##3997D4	1.00	3.21	6.55	6.55
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.55	21.00	1.00	1.00
##000000	6.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B98D7

Deuteranopia (green-blind)

#6589D3

Tritanopia (blue-blind)

#00A6AC

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #3997d4;
/* rgb */ color: rgb(57, 151, 212);
/* oklch */ color: oklch(64.8% 0.126 241.3);

Tailwind

colors: {
  custom: {
    50: '#83b5e1',
    500: '#3997d4',
    950: '#000000',
  },
}

SCSS

$custom: #3997d4;
$custom-light: #83b5e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3997d4",
  "rgb": {
    "r": 57,
    "g": 151,
    "b": 212
  },
  "hsl": {
    "h": 203.613,
    "s": 64.315,
    "l": 52.745
  },
  "oklch": {
    "l": 0.64849,
    "c": 0.12599,
    "h": 241.3
  },
  "luminance": 0.27757
}

Semantic roles & 50–950 ramp

primary

#3997D4

secondary

#D6AD93

accent

#8240E7

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3997D4

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

Preview Lab → · Contrast checker → · Palette generator →