#3F8AD0#3F8AD0

#3F8AD0 is a mid, vivid cyan. Relative luminance 0.238; OKLCH L 61.8% C 0.130 H 249.4°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#3F8AD0
RGB	rgb(63, 138, 208)
HSL	hsl(209, 61%, 53%)
HSV	hsv(209, 70%, 82%)
CMYK	cmyk(69.7%, 33.7%, 0%, 18.4%)
CIE-LAB	lab(55.87, -0.40, -42.80)
CIE-LCH	lch(55.87, 42.80, 269.46°)
OKLab	oklab(61.85% -0.0457 -0.1214)
OKLCH	oklch(61.85% 0.13 249.4)
XYZ	xyz(22.5193, 23.7854, 63.0665)
Luminance	0.2379 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8AD0 #D0853F

analogous

#3FD0CE #3F8AD0 #3F41D0

triadic

#3F8AD0 #D03F8A #8AD03F

tetradic

#3F8AD0 #CE3FD0 #D0853F #41D03F

square

#3F8AD0 #CE3FD0 #D0853F #41D03F

split-complementary

#3F8AD0 #D03F41 #D0CE3F

monochromatic

#1D4C77 #296BA9 #3F8AD0 #70A8DC #A1C6E8

Accessibility & contrast

On white

3.65

#3F8AD0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.76

#3F8AD0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8AD0

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8AD0	#FFFFFF	#000000	##000000
##3F8AD0	1.00	3.65	5.76	5.76
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.76	21.00	1.00	1.00
##000000	5.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B8DD3

Deuteranopia (green-blind)

#5680CF

Tritanopia (blue-blind)

#009BA3

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #3f8ad0;
/* rgb */ color: rgb(63, 138, 208);
/* oklch */ color: oklch(61.8% 0.130 249.4);

Tailwind

colors: {
  custom: {
    50: '#84abde',
    500: '#3f8ad0',
    950: '#000000',
  },
}

SCSS

$custom: #3f8ad0;
$custom-light: #84abde;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8ad0",
  "rgb": {
    "r": 63,
    "g": 138,
    "b": 208
  },
  "hsl": {
    "h": 208.966,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.61845,
    "c": 0.12973,
    "h": 249.4
  },
  "luminance": 0.23788
}

Semantic roles & 50–950 ramp

primary

#3F8AD0

secondary

#D5B496

accent

#9144E4

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F8AD0

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

Preview Lab → · Contrast checker → · Palette generator →