#3999D2#3999D2

#3999D2 is a light, vivid cyan. Relative luminance 0.283; OKLCH L 65.2% C 0.122 H 239.0°. Best body text is #000000 at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#3999D2
RGB	rgb(57, 153, 210)
HSL	hsl(202, 63%, 52%)
HSV	hsv(202, 73%, 82%)
CMYK	cmyk(72.9%, 27.1%, 0%, 17.6%)
CIE-LAB	lab(60.16, -9.18, -37.19)
CIE-LCH	lch(60.16, 38.31, 256.14°)
OKLab	oklab(65.21% -0.063 -0.105)
OKLCH	oklch(65.21% 0.122 239)
XYZ	xyz(24.7069, 28.3026, 65.1211)
Luminance	0.2831 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3999D2 #D27239

analogous

#39D2BF #3999D2 #394DD2

triadic

#3999D2 #D23999 #99D239

tetradic

#3999D2 #BF39D2 #D27239 #4DD239

square

#3999D2 #BF39D2 #D27239 #4DD239

split-complementary

#3999D2 #D2394D #D2BF39

monochromatic

#1B5476 #2677A8 #3999D2 #6BB3DD #9DCCE9

Accessibility & contrast

On white

3.15

#3999D2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.66

#3999D2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3999D2

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3999D2	#FFFFFF	#000000	##000000
##3999D2	1.00	3.15	6.66	6.66
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.66	21.00	1.00	1.00
##000000	6.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E99D5

Deuteranopia (green-blind)

#698BD1

Tritanopia (blue-blind)

#00A7AD

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #3999d2;
/* rgb */ color: rgb(57, 153, 210);
/* oklch */ color: oklch(65.2% 0.122 239.0);

Tailwind

colors: {
  custom: {
    50: '#83b6e0',
    500: '#3999d2',
    950: '#000000',
  },
}

SCSS

$custom: #3999d2;
$custom-light: #83b6e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3999d2",
  "rgb": {
    "r": 57,
    "g": 153,
    "b": 210
  },
  "hsl": {
    "h": 202.353,
    "s": 62.963,
    "l": 52.353
  },
  "oklch": {
    "l": 0.65212,
    "c": 0.12247,
    "h": 239
  },
  "luminance": 0.28305
}

Semantic roles & 50–950 ramp

primary

#3999D2

secondary

#D5AB92

accent

#7F42E6

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3999D2

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

Preview Lab → · Contrast checker → · Palette generator →