#3F99D4#3F99D4

#3F99D4 is a light, vivid cyan. Relative luminance 0.286; OKLCH L 65.5% C 0.122 H 241.1°. Best body text is #000000 at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F99D4
RGB	rgb(63, 153, 212)
HSL	hsl(204, 63%, 54%)
HSV	hsv(204, 70%, 83%)
CMYK	cmyk(70.3%, 27.8%, 0%, 16.9%)
CIE-LAB	lab(60.42, -7.67, -37.90)
CIE-LCH	lch(60.42, 38.67, 258.56°)
OKLab	oklab(65.49% -0.0591 -0.107)
OKLCH	oklch(65.49% 0.122 241.1)
XYZ	xyz(25.3202, 28.5899, 66.4586)
Luminance	0.2859 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F99D4 #D47A3F

analogous

#3FD4C4 #3F99D4 #3F4FD4

triadic

#3F99D4 #D43F99 #99D43F

tetradic

#3F99D4 #C43FD4 #D47A3F #4FD43F

square

#3F99D4 #C43FD4 #D47A3F #4FD43F

split-complementary

#3F99D4 #D43F4F #D4C43F

monochromatic

#1C567D #2779AF #3F99D4 #71B4DF #A3CEEA

Accessibility & contrast

On white

3.13

#3F99D4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.72

#3F99D4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F99D4

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F99D4	#FFFFFF	#000000	##000000
##3F99D4	1.00	3.13	6.72	6.72
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.72	21.00	1.00	1.00
##000000	6.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E9AD7

Deuteranopia (green-blind)

#698BD3

Tritanopia (blue-blind)

#00A8AD

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #3f99d4;
/* rgb */ color: rgb(63, 153, 212);
/* oklch */ color: oklch(65.5% 0.122 241.1);

Tailwind

colors: {
  custom: {
    50: '#85b6e1',
    500: '#3f99d4',
    950: '#000000',
  },
}

SCSS

$custom: #3f99d4;
$custom-light: #85b6e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f99d4",
  "rgb": {
    "r": 63,
    "g": 153,
    "b": 212
  },
  "hsl": {
    "h": 203.758,
    "s": 63.404,
    "l": 53.922
  },
  "oklch": {
    "l": 0.65493,
    "c": 0.12223,
    "h": 241.1
  },
  "luminance": 0.28593
}

Semantic roles & 50–950 ramp

primary

#3F99D4

secondary

#D7B198

accent

#8341E6

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F99D4

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

Preview Lab → · Contrast checker → · Palette generator →