#3F8CCB#3F8CCB

#3F8CCB is a light, vivid cyan. Relative luminance 0.241; OKLCH L 62.0% C 0.122 H 246.3°. Best body text is #000000 at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#3F8CCB
RGB	rgb(63, 140, 203)
HSL	hsl(207, 57%, 52%)
HSV	hsv(207, 69%, 80%)
CMYK	cmyk(69%, 31%, 0%, 20.4%)
CIE-LAB	lab(56.21, -3.31, -39.45)
CIE-LCH	lch(56.21, 39.58, 265.20°)
OKLab	oklab(62.03% -0.0491 -0.1116)
OKLCH	oklch(62.03% 0.122 246.3)
XYZ	xyz(22.2034, 24.1223, 59.9743)
Luminance	0.2412 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8CCB #CB7E3F

analogous

#3FCBC4 #3F8CCB #3F46CB

triadic

#3F8CCB #CB3F8C #8CCB3F

tetradic

#3F8CCB #C43FCB #CB7E3F #46CB3F

square

#3F8CCB #C43FCB #CB7E3F #46CB3F

split-complementary

#3F8CCB #CB3F46 #CBC43F

monochromatic

#1F4C71 #2C6CA1 #3F8CCB #6FA9D8 #9FC6E5

Accessibility & contrast

On white

3.61

#3F8CCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.83

#3F8CCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8CCB

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8CCB	#FFFFFF	#000000	##000000
##3F8CCB	1.00	3.61	5.83	5.83
#FFFFFF	3.61	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)

#708ECE

Deuteranopia (green-blind)

#5C81CA

Tritanopia (blue-blind)

#009BA2

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3f8ccb;
/* rgb */ color: rgb(63, 140, 203);
/* oklch */ color: oklch(62.0% 0.122 246.3);

Tailwind

colors: {
  custom: {
    50: '#84addb',
    500: '#3f8ccb',
    950: '#000000',
  },
}

SCSS

$custom: #3f8ccb;
$custom-light: #84addb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8ccb",
  "rgb": {
    "r": 63,
    "g": 140,
    "b": 203
  },
  "hsl": {
    "h": 207,
    "s": 57.377,
    "l": 52.157
  },
  "oklch": {
    "l": 0.62031,
    "c": 0.12193,
    "h": 246.3
  },
  "luminance": 0.24125
}

Semantic roles & 50–950 ramp

primary

#3F8CCB

secondary

#D1B094

accent

#8C47E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F8CCB

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

Preview Lab → · Contrast checker → · Palette generator →