#3F8ED3#3F8ED3

#3F8ED3 is a light, vivid cyan. Relative luminance 0.251; OKLCH L 62.9% C 0.130 H 247.9°. Best body text is #000000 at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#3F8ED3
RGB	rgb(63, 142, 211)
HSL	hsl(208, 63%, 54%)
HSV	hsv(208, 70%, 83%)
CMYK	cmyk(70.1%, 32.7%, 0%, 17.3%)
CIE-LAB	lab(57.18, -1.70, -42.43)
CIE-LCH	lch(57.18, 42.46, 267.71°)
OKLab	oklab(62.92% -0.0487 -0.1203)
OKLCH	oklch(62.92% 0.13 247.9)
XYZ	xyz(23.4763, 25.1034, 65.2236)
Luminance	0.2511 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8ED3 #D3843F

analogous

#3FD3CE #3F8ED3 #3F44D3

triadic

#3F8ED3 #D33F8E #8ED33F

tetradic

#3F8ED3 #CE3FD3 #D3843F #44D33F

square

#3F8ED3 #CE3FD3 #D3843F #44D33F

split-complementary

#3F8ED3 #D33F44 #D3CE3F

monochromatic

#1C4F7B #286FAD #3F8ED3 #71ABDE #A3C9EA

Accessibility & contrast

On white

3.49

#3F8ED3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.02

#3F8ED3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8ED3

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8ED3	#FFFFFF	#000000	##000000
##3F8ED3	1.00	3.49	6.02	6.02
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.02	21.00	1.00	1.00
##000000	6.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F91D6

Deuteranopia (green-blind)

#5A83D2

Tritanopia (blue-blind)

#009EA7

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #3f8ed3;
/* rgb */ color: rgb(63, 142, 211);
/* oklch */ color: oklch(62.9% 0.130 247.9);

Tailwind

colors: {
  custom: {
    50: '#85aee1',
    500: '#3f8ed3',
    950: '#000000',
  },
}

SCSS

$custom: #3f8ed3;
$custom-light: #85aee1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8ed3",
  "rgb": {
    "r": 63,
    "g": 142,
    "b": 211
  },
  "hsl": {
    "h": 207.973,
    "s": 62.712,
    "l": 53.725
  },
  "oklch": {
    "l": 0.62918,
    "c": 0.12979,
    "h": 247.9
  },
  "luminance": 0.25106
}

Semantic roles & 50–950 ramp

primary

#3F8ED3

secondary

#D7B597

accent

#8E42E6

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F8ED3

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

Preview Lab → · Contrast checker → · Palette generator →