#3F99D6#3F99D6

#3F99D6 is a light, vivid cyan. Relative luminance 0.287; OKLCH L 65.6% C 0.124 H 242.0°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#3F99D6
RGB	rgb(63, 153, 214)
HSL	hsl(204, 65%, 54%)
HSV	hsv(204, 71%, 84%)
CMYK	cmyk(70.6%, 28.5%, 0%, 16.1%)
CIE-LAB	lab(60.51, -6.98, -38.87)
CIE-LCH	lch(60.51, 39.49, 259.81°)
OKLab	oklab(65.59% -0.0585 -0.1098)
OKLCH	oklch(65.59% 0.124 242)
XYZ	xyz(25.5740, 28.6914, 67.7955)
Luminance	0.2869 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F99D6 #D67C3F

analogous

#3FD6C7 #3F99D6 #3F4ED6

triadic

#3F99D6 #D63F99 #99D63F

tetradic

#3F99D6 #C73FD6 #D67C3F #4ED63F

square

#3F99D6 #C73FD6 #D67C3F #4ED63F

split-complementary

#3F99D6 #D63F4E #D6C73F

monochromatic

#1B577F #2679B2 #3F99D6 #71B4E1 #A4CFEC

Accessibility & contrast

On white

3.12

#3F99D6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#3F99D6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F99D6

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F99D6	#FFFFFF	#000000	##000000
##3F99D6	1.00	3.12	6.74	6.74
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D9AD9

Deuteranopia (green-blind)

#688BD5

Tritanopia (blue-blind)

#00A8AE

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #3f99d6;
/* rgb */ color: rgb(63, 153, 214);
/* oklch */ color: oklch(65.6% 0.124 242.0);

Tailwind

colors: {
  custom: {
    50: '#86b6e3',
    500: '#3f99d6',
    950: '#000000',
  },
}

SCSS

$custom: #3f99d6;
$custom-light: #86b6e3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f99d6",
  "rgb": {
    "r": 63,
    "g": 153,
    "b": 214
  },
  "hsl": {
    "h": 204.238,
    "s": 64.807,
    "l": 54.314
  },
  "oklch": {
    "l": 0.65594,
    "c": 0.12442,
    "h": 242
  },
  "luminance": 0.28694
}

Semantic roles & 50–950 ramp

primary

#3F99D6

secondary

#D8B298

accent

#8440E8

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F99D6

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

Preview Lab → · Contrast checker → · Palette generator →