#3F8BD0#3F8BD0

#3F8BD0 is a light, vivid cyan. Relative luminance 0.241; OKLCH L 62.1% C 0.129 H 248.8°. Best body text is #000000 at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#3F8BD0
RGB	rgb(63, 139, 208)
HSL	hsl(209, 61%, 53%)
HSV	hsv(209, 70%, 82%)
CMYK	cmyk(69.7%, 33.2%, 0%, 18.4%)
CIE-LAB	lab(56.16, -0.99, -42.34)
CIE-LCH	lch(56.16, 42.35, 268.66°)
OKLab	oklab(62.07% -0.0467 -0.1201)
OKLCH	oklch(62.07% 0.129 248.8)
XYZ	xyz(22.6634, 24.0736, 63.1145)
Luminance	0.2408 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8BD0 #D0843F

analogous

#3FD0CC #3F8BD0 #3F42D0

triadic

#3F8BD0 #D03F8B #8BD03F

tetradic

#3F8BD0 #CC3FD0 #D0843F #42D03F

square

#3F8BD0 #CC3FD0 #D0843F #42D03F

split-complementary

#3F8BD0 #D03F42 #D0CC3F

monochromatic

#1D4C77 #296CA9 #3F8BD0 #70A9DC #A1C6E8

Accessibility & contrast

On white

3.61

#3F8BD0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.82

#3F8BD0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BD0

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8BD0	#FFFFFF	#000000	##000000
##3F8BD0	1.00	3.61	5.82	5.82
#FFFFFF	3.61	1.00	21.00	21.00
#000000	5.82	21.00	1.00	1.00
##000000	5.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C8ED3

Deuteranopia (green-blind)

#5880CF

Tritanopia (blue-blind)

#009BA4

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3f8bd0;
/* rgb */ color: rgb(63, 139, 208);
/* oklch */ color: oklch(62.1% 0.129 248.8);

Tailwind

colors: {
  custom: {
    50: '#84acde',
    500: '#3f8bd0',
    950: '#000000',
  },
}

SCSS

$custom: #3f8bd0;
$custom-light: #84acde;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8bd0",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 208
  },
  "hsl": {
    "h": 208.552,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.62072,
    "c": 0.12882,
    "h": 248.8
  },
  "luminance": 0.24076
}

Semantic roles & 50–950 ramp

primary

#3F8BD0

secondary

#D5B496

accent

#9044E4

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F8BD0

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

Preview Lab → · Contrast checker → · Palette generator →