#3F8FD5#3F8FD5

#3F8FD5 is a light, vivid cyan. Relative luminance 0.255; OKLCH L 63.3% C 0.131 H 248.0°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#3F8FD5
RGB	rgb(63, 143, 213)
HSL	hsl(208, 64%, 54%)
HSV	hsv(208, 70%, 84%)
CMYK	cmyk(70.4%, 32.9%, 0%, 16.5%)
CIE-LAB	lab(57.56, -1.59, -42.94)
CIE-LCH	lch(57.56, 42.97, 267.88°)
OKLab	oklab(63.25% -0.0491 -0.1218)
OKLCH	oklch(63.25% 0.131 248)
XYZ	xyz(23.8781, 25.5032, 66.6021)
Luminance	0.2551 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8FD5 #D5853F

analogous

#3FD5D0 #3F8FD5 #3F44D5

triadic

#3F8FD5 #D53F8F #8FD53F

tetradic

#3F8FD5 #D03FD5 #D5853F #44D53F

square

#3F8FD5 #D03FD5 #D5853F #44D53F

split-complementary

#3F8FD5 #D53F44 #D5D03F

monochromatic

#1C507E #2770B0 #3F8FD5 #71ACE0 #A3CAEB

Accessibility & contrast

On white

3.44

#3F8FD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.10

#3F8FD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8FD5

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8FD5	#FFFFFF	#000000	##000000
##3F8FD5	1.00	3.44	6.10	6.10
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.10	21.00	1.00	1.00
##000000	6.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F92D8

Deuteranopia (green-blind)

#5A84D4

Tritanopia (blue-blind)

#00A0A8

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3f8fd5;
/* rgb */ color: rgb(63, 143, 213);
/* oklch */ color: oklch(63.3% 0.131 248.0);

Tailwind

colors: {
  custom: {
    50: '#85afe2',
    500: '#3f8fd5',
    950: '#000000',
  },
}

SCSS

$custom: #3f8fd5;
$custom-light: #85afe2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8fd5",
  "rgb": {
    "r": 63,
    "g": 143,
    "b": 213
  },
  "hsl": {
    "h": 208,
    "s": 64.103,
    "l": 54.118
  },
  "oklch": {
    "l": 0.63254,
    "c": 0.13131,
    "h": 248
  },
  "luminance": 0.25506
}

Semantic roles & 50–950 ramp

primary

#3F8FD5

secondary

#D8B698

accent

#8E41E7

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F8FD5

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

Preview Lab → · Contrast checker → · Palette generator →