#3F8ACF#3F8ACF

#3F8ACF is a mid, vivid cyan. Relative luminance 0.237; OKLCH L 61.8% C 0.129 H 249.0°. Best body text is #000000 at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#3F8ACF
RGB	rgb(63, 138, 207)
HSL	hsl(209, 60%, 53%)
HSV	hsv(209, 70%, 81%)
CMYK	cmyk(69.6%, 33.3%, 0%, 18.8%)
CIE-LAB	lab(55.82, -0.75, -42.31)
CIE-LCH	lch(55.82, 42.32, 268.98°)
OKLab	oklab(61.79% -0.046 -0.12)
OKLCH	oklch(61.79% 0.129 249)
XYZ	xyz(22.3966, 23.7363, 62.4206)
Luminance	0.2374 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8ACF #CF843F

analogous

#3FCFCC #3F8ACF #3F42CF

triadic

#3F8ACF #CF3F8A #8ACF3F

tetradic

#3F8ACF #CC3FCF #CF843F #42CF3F

square

#3F8ACF #CC3FCF #CF843F #42CF3F

split-complementary

#3F8ACF #CF3F42 #CFCC3F

monochromatic

#1E4C76 #2A6BA7 #3F8ACF #70A8DB #A1C6E7

Accessibility & contrast

On white

3.65

#3F8ACF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.75

#3F8ACF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8ACF

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8ACF	#FFFFFF	#000000	##000000
##3F8ACF	1.00	3.65	5.75	5.75
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.75	21.00	1.00	1.00
##000000	5.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B8DD2

Deuteranopia (green-blind)

#5780CE

Tritanopia (blue-blind)

#009AA3

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #3f8acf;
/* rgb */ color: rgb(63, 138, 207);
/* oklch */ color: oklch(61.8% 0.129 249.0);

Tailwind

colors: {
  custom: {
    50: '#84abde',
    500: '#3f8acf',
    950: '#000000',
  },
}

SCSS

$custom: #3f8acf;
$custom-light: #84abde;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8acf",
  "rgb": {
    "r": 63,
    "g": 138,
    "b": 207
  },
  "hsl": {
    "h": 208.75,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.6179,
    "c": 0.1285,
    "h": 249
  },
  "luminance": 0.23739
}

Semantic roles & 50–950 ramp

primary

#3F8ACF

secondary

#D4B496

accent

#9145E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F8ACF

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

Preview Lab → · Contrast checker → · Palette generator →