#3F8DD1#3F8DD1

#3F8DD1 is a light, vivid cyan. Relative luminance 0.247; OKLCH L 62.6% C 0.128 H 247.9°. Best body text is #000000 at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#3F8DD1
RGB	rgb(63, 141, 209)
HSL	hsl(208, 61%, 53%)
HSV	hsv(208, 70%, 82%)
CMYK	cmyk(69.9%, 32.5%, 0%, 18%)
CIE-LAB	lab(56.79, -1.81, -41.91)
CIE-LCH	lch(56.79, 41.95, 267.52°)
OKLab	oklab(62.58% -0.0483 -0.1188)
OKLCH	oklch(62.58% 0.128 247.9)
XYZ	xyz(23.0791, 24.7075, 63.8619)
Luminance	0.2471 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8DD1 #D1833F

analogous

#3FD1CC #3F8DD1 #3F44D1

triadic

#3F8DD1 #D13F8D #8DD13F

tetradic

#3F8DD1 #CC3FD1 #D1833F #44D13F

square

#3F8DD1 #CC3FD1 #D1833F #44D13F

split-complementary

#3F8DD1 #D13F44 #D1CC3F

monochromatic

#1D4E79 #296EAA #3F8DD1 #70AADD #A2C8E9

Accessibility & contrast

On white

3.53

#3F8DD1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.94

#3F8DD1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8DD1

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8DD1	#FFFFFF	#000000	##000000
##3F8DD1	1.00	3.53	5.94	5.94
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.94	21.00	1.00	1.00
##000000	5.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E90D4

Deuteranopia (green-blind)

#5A82D0

Tritanopia (blue-blind)

#009DA5

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3f8dd1;
/* rgb */ color: rgb(63, 141, 209);
/* oklch */ color: oklch(62.6% 0.128 247.9);

Tailwind

colors: {
  custom: {
    50: '#85aedf',
    500: '#3f8dd1',
    950: '#000000',
  },
}

SCSS

$custom: #3f8dd1;
$custom-light: #85aedf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8dd1",
  "rgb": {
    "r": 63,
    "g": 141,
    "b": 209
  },
  "hsl": {
    "h": 207.945,
    "s": 61.345,
    "l": 53.333
  },
  "oklch": {
    "l": 0.62582,
    "c": 0.12826,
    "h": 247.9
  },
  "luminance": 0.2471
}

Semantic roles & 50–950 ramp

primary

#3F8DD1

secondary

#D5B497

accent

#8E43E4

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F8DD1

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

Preview Lab → · Contrast checker → · Palette generator →