#3F8CCC#3F8CCC

#3F8CCC is a light, vivid cyan. Relative luminance 0.242; OKLCH L 62.1% C 0.123 H 246.6°. Best body text is #000000 at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#3F8CCC
RGB	rgb(63, 140, 204)
HSL	hsl(207, 58%, 52%)
HSV	hsv(207, 69%, 80%)
CMYK	cmyk(69.1%, 31.4%, 0%, 20%)
CIE-LAB	lab(56.26, -2.97, -39.93)
CIE-LCH	lch(56.26, 40.04, 265.75°)
OKLab	oklab(62.09% -0.0488 -0.113)
OKLCH	oklch(62.09% 0.123 246.6)
XYZ	xyz(22.3229, 24.1702, 60.6039)
Luminance	0.2417 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8CCC #CC7F3F

analogous

#3FCCC6 #3F8CCC #3F45CC

triadic

#3F8CCC #CC3F8C #8CCC3F

tetradic

#3F8CCC #C63FCC #CC7F3F #45CC3F

square

#3F8CCC #C63FCC #CC7F3F #45CC3F

split-complementary

#3F8CCC #CC3F45 #CCC63F

monochromatic

#1E4C72 #2B6CA3 #3F8CCC #6FA9D9 #A0C6E6

Accessibility & contrast

On white

3.60

#3F8CCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.83

#3F8CCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8CCC

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8CCC	#FFFFFF	#000000	##000000
##3F8CCC	1.00	3.60	5.83	5.83
#FFFFFF	3.60	1.00	21.00	21.00
#000000	5.83	21.00	1.00	1.00
##000000	5.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F8ECF

Deuteranopia (green-blind)

#5C81CB

Tritanopia (blue-blind)

#009BA3

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3f8ccc;
/* rgb */ color: rgb(63, 140, 204);
/* oklch */ color: oklch(62.1% 0.123 246.6);

Tailwind

colors: {
  custom: {
    50: '#84addc',
    500: '#3f8ccc',
    950: '#000000',
  },
}

SCSS

$custom: #3f8ccc;
$custom-light: #84addc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8ccc",
  "rgb": {
    "r": 63,
    "g": 140,
    "b": 204
  },
  "hsl": {
    "h": 207.234,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.62085,
    "c": 0.12313,
    "h": 246.6
  },
  "luminance": 0.24173
}

Semantic roles & 50–950 ramp

primary

#3F8CCC

secondary

#D2B195

accent

#8D47E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F8CCC

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

Preview Lab → · Contrast checker → · Palette generator →