#3F84ED#3F84ED

#3F84ED is a light, vivid blue. Relative luminance 0.237; OKLCH L 62.3% C 0.173 H 258.7°. Best body text is #000000 at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#3F84ED
RGB	rgb(63, 132, 237)
HSL	hsl(216, 83%, 59%)
HSV	hsv(216, 73%, 93%)
CMYK	cmyk(73.4%, 44.3%, 0%, 7.1%)
CIE-LAB	lab(55.76, 13.53, -59.22)
CIE-LCH	lch(55.76, 60.74, 282.87°)
OKLab	oklab(62.27% -0.0338 -0.1696)
OKLCH	oklch(62.27% 0.173 258.7)
XYZ	xyz(25.5817, 23.6709, 83.3250)
Luminance	0.2367 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F84ED #EDA83F

analogous

#3FDBED #3F84ED #513FED

triadic

#3F84ED #ED3F84 #84ED3F

tetradic

#3F84ED #ED3FDB #EDA83F #3FED51

square

#3F84ED #ED3FDB #EDA83F #3FED51

split-complementary

#3F84ED #ED513F #DBED3F

monochromatic

#0F4AA2 #1463DA #3F84ED #77A8F2 #AFCCF7

Accessibility & contrast

On white

3.66

#3F84ED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.73

#3F84ED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F84ED

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F84ED	#FFFFFF	#000000	##000000
##3F84ED	1.00	3.66	5.73	5.73
#FFFFFF	3.66	1.00	21.00	21.00
#000000	5.73	21.00	1.00	1.00
##000000	5.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E8EF1

Deuteranopia (green-blind)

#2B7EEB

Tritanopia (blue-blind)

#009DAD

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #3f84ed;
/* rgb */ color: rgb(63, 132, 237);
/* oklch */ color: oklch(62.3% 0.173 258.7);

Tailwind

colors: {
  custom: {
    50: '#8aa7f3',
    500: '#3f84ed',
    950: '#000000',
  },
}

SCSS

$custom: #3f84ed;
$custom-light: #8aa7f3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f84ed",
  "rgb": {
    "r": 63,
    "g": 132,
    "b": 237
  },
  "hsl": {
    "h": 216.207,
    "s": 82.857,
    "l": 58.824
  },
  "oklch": {
    "l": 0.62266,
    "c": 0.17298,
    "h": 258.7
  },
  "luminance": 0.23674
}

Semantic roles & 50–950 ramp

primary

#3F84ED

secondary

#E6CBA2

accent

#A92FF9

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0D0F17

muted

#7E7F85

Preview Lab

Preview with #3F84ED

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

Preview Lab → · Contrast checker → · Palette generator →