#3F99D2#3F99D2

#3F99D2 is a light, vivid cyan. Relative luminance 0.285; OKLCH L 65.4% C 0.120 H 240.2°. Best body text is #000000 at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#3F99D2
RGB	rgb(63, 153, 210)
HSL	hsl(203, 62%, 54%)
HSV	hsv(203, 70%, 82%)
CMYK	cmyk(70%, 27.1%, 0%, 17.6%)
CIE-LAB	lab(60.33, -8.35, -36.92)
CIE-LCH	lch(60.33, 37.85, 257.26°)
OKLab	oklab(65.39% -0.0598 -0.1041)
OKLCH	oklch(65.39% 0.12 240.2)
XYZ	xyz(25.0695, 28.4896, 65.1381)
Luminance	0.2849 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F99D2 #D2783F

analogous

#3FD2C1 #3F99D2 #3F4FD2

triadic

#3F99D2 #D23F99 #99D23F

tetradic

#3F99D2 #C13FD2 #D2783F #4FD23F

square

#3F99D2 #C13FD2 #D2783F #4FD23F

split-complementary

#3F99D2 #D23F4F #D2C13F

monochromatic

#1D567A #2879AC #3F99D2 #71B3DE #A2CEE9

Accessibility & contrast

On white

3.14

#3F99D2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.70

#3F99D2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F99D2

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F99D2	#FFFFFF	#000000	##000000
##3F99D2	1.00	3.14	6.70	6.70
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.70	21.00	1.00	1.00
##000000	6.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F99D5

Deuteranopia (green-blind)

#6A8BD1

Tritanopia (blue-blind)

#00A7AD

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #3f99d2;
/* rgb */ color: rgb(63, 153, 210);
/* oklch */ color: oklch(65.4% 0.120 240.2);

Tailwind

colors: {
  custom: {
    50: '#85b6e0',
    500: '#3f99d2',
    950: '#000000',
  },
}

SCSS

$custom: #3f99d2;
$custom-light: #85b6e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f99d2",
  "rgb": {
    "r": 63,
    "g": 153,
    "b": 210
  },
  "hsl": {
    "h": 203.265,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.65392,
    "c": 0.12008,
    "h": 240.2
  },
  "luminance": 0.28492
}

Semantic roles & 50–950 ramp

primary

#3F99D2

secondary

#D6AF97

accent

#8243E5

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F99D2

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

Preview Lab → · Contrast checker → · Palette generator →