#3F8CD0#3F8CD0

#3F8CD0 is a light, vivid cyan. Relative luminance 0.244; OKLCH L 62.3% C 0.128 H 248.1°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F8CD0
RGB	rgb(63, 140, 208)
HSL	hsl(208, 61%, 53%)
HSV	hsv(208, 70%, 82%)
CMYK	cmyk(69.7%, 32.7%, 0%, 18.4%)
CIE-LAB	lab(56.45, -1.58, -41.89)
CIE-LCH	lch(56.45, 41.91, 267.85°)
OKLab	oklab(62.3% -0.0477 -0.1187)
OKLCH	oklch(62.3% 0.128 248.1)
XYZ	xyz(22.8089, 24.3645, 63.1630)
Luminance	0.2437 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8CD0 #D0833F

analogous

#3FD0CB #3F8CD0 #3F43D0

triadic

#3F8CD0 #D03F8C #8CD03F

tetradic

#3F8CD0 #CB3FD0 #D0833F #43D03F

square

#3F8CD0 #CB3FD0 #D0833F #43D03F

split-complementary

#3F8CD0 #D03F43 #D0CB3F

monochromatic

#1D4D77 #296DA9 #3F8CD0 #70A9DC #A1C7E8

Accessibility & contrast

On white

3.58

#3F8CD0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.87

#3F8CD0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8CD0

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8CD0	#FFFFFF	#000000	##000000
##3F8CD0	1.00	3.58	5.87	5.87
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D8FD3

Deuteranopia (green-blind)

#5981CF

Tritanopia (blue-blind)

#009CA4

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3f8cd0;
/* rgb */ color: rgb(63, 140, 208);
/* oklch */ color: oklch(62.3% 0.128 248.1);

Tailwind

colors: {
  custom: {
    50: '#84adde',
    500: '#3f8cd0',
    950: '#000000',
  },
}

SCSS

$custom: #3f8cd0;
$custom-light: #84adde;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8cd0",
  "rgb": {
    "r": 63,
    "g": 140,
    "b": 208
  },
  "hsl": {
    "h": 208.138,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.623,
    "c": 0.12793,
    "h": 248.1
  },
  "luminance": 0.24367
}

Semantic roles & 50–950 ramp

primary

#3F8CD0

secondary

#D5B396

accent

#8F44E4

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F8CD0

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

Preview Lab → · Contrast checker → · Palette generator →