#3F8ED8#3F8ED8

#3F8ED8 is a light, vivid cyan. Relative luminance 0.254; OKLCH L 63.2% C 0.136 H 249.6°. Best body text is #000000 at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#3F8ED8
RGB	rgb(63, 142, 216)
HSL	hsl(209, 66%, 55%)
HSV	hsv(209, 71%, 85%)
CMYK	cmyk(70.8%, 34.3%, 0%, 15.3%)
CIE-LAB	lab(57.42, 0.05, -44.84)
CIE-LCH	lch(57.42, 44.84, 270.06°)
OKLab	oklab(63.19% -0.0474 -0.1273)
OKLCH	oklch(63.19% 0.136 249.6)
XYZ	xyz(24.1129, 25.3580, 68.5762)
Luminance	0.2536 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8ED8 #D8893F

analogous

#3FD8D6 #3F8ED8 #3F41D8

triadic

#3F8ED8 #D83F8E #8ED83F

tetradic

#3F8ED8 #D63FD8 #D8893F #41D83F

square

#3F8ED8 #D63FD8 #D8893F #41D83F

split-complementary

#3F8ED8 #D83F41 #D8D63F

monochromatic

#1A5082 #256FB5 #3F8ED8 #72ACE2 #A5CAED

Accessibility & contrast

On white

3.46

#3F8ED8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.07

#3F8ED8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8ED8

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8ED8	#FFFFFF	#000000	##000000
##3F8ED8	1.00	3.46	6.07	6.07
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.07	21.00	1.00	1.00
##000000	6.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D92DB

Deuteranopia (green-blind)

#5783D7

Tritanopia (blue-blind)

#00A0A9

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3f8ed8;
/* rgb */ color: rgb(63, 142, 216);
/* oklch */ color: oklch(63.2% 0.136 249.6);

Tailwind

colors: {
  custom: {
    50: '#86aee4',
    500: '#3f8ed8',
    950: '#000000',
  },
}

SCSS

$custom: #3f8ed8;
$custom-light: #86aee4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8ed8",
  "rgb": {
    "r": 63,
    "g": 142,
    "b": 216
  },
  "hsl": {
    "h": 209.02,
    "s": 66.234,
    "l": 54.706
  },
  "oklch": {
    "l": 0.63193,
    "c": 0.13587,
    "h": 249.6
  },
  "luminance": 0.25361
}

Semantic roles & 50–950 ramp

primary

#3F8ED8

secondary

#DAB899

accent

#913FE9

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C1015

muted

#7D7F84

Preview Lab

Preview with #3F8ED8

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

Preview Lab → · Contrast checker → · Palette generator →