#3F8FCF#3F8FCF

#3F8FCF is a light, vivid cyan. Relative luminance 0.252; OKLCH L 62.9% C 0.124 H 245.8°. Best body text is #000000 at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#3F8FCF
RGB	rgb(63, 143, 207)
HSL	hsl(207, 60%, 53%)
HSV	hsv(207, 70%, 81%)
CMYK	cmyk(69.6%, 30.9%, 0%, 18.8%)
CIE-LAB	lab(57.27, -3.67, -40.03)
CIE-LCH	lch(57.27, 40.19, 264.76°)
OKLab	oklab(62.93% -0.0509 -0.1133)
OKLCH	oklch(62.93% 0.124 245.8)
XYZ	xyz(23.1306, 25.2042, 62.6652)
Luminance	0.2521 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8FCF #CF7F3F

analogous

#3FCFC7 #3F8FCF #3F47CF

triadic

#3F8FCF #CF3F8F #8FCF3F

tetradic

#3F8FCF #C73FCF #CF7F3F #47CF3F

square

#3F8FCF #C73FCF #CF7F3F #47CF3F

split-complementary

#3F8FCF #CF3F47 #CFC73F

monochromatic

#1E4F76 #2A6FA7 #3F8FCF #70ACDB #A1C8E7

Accessibility & contrast

On white

3.48

#3F8FCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.04

#3F8FCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8FCF

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8FCF	#FFFFFF	#000000	##000000
##3F8FCF	1.00	3.48	6.04	6.04
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.04	21.00	1.00	1.00
##000000	6.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7291D2

Deuteranopia (green-blind)

#5E83CE

Tritanopia (blue-blind)

#009EA6

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #3f8fcf;
/* rgb */ color: rgb(63, 143, 207);
/* oklch */ color: oklch(62.9% 0.124 245.8);

Tailwind

colors: {
  custom: {
    50: '#84afde',
    500: '#3f8fcf',
    950: '#000000',
  },
}

SCSS

$custom: #3f8fcf;
$custom-light: #84afde;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8fcf",
  "rgb": {
    "r": 63,
    "g": 143,
    "b": 207
  },
  "hsl": {
    "h": 206.667,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.62932,
    "c": 0.12417,
    "h": 245.8
  },
  "luminance": 0.25207
}

Semantic roles & 50–950 ramp

primary

#3F8FCF

secondary

#D4B196

accent

#8B45E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F8FCF

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

Preview Lab → · Contrast checker → · Palette generator →