#3F5BD6#3F5BD6

#3F5BD6 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.3% C 0.191 H 269.0°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#3F5BD6
RGB	rgb(63, 91, 214)
HSL	hsl(229, 65%, 54%)
HSV	hsv(229, 71%, 84%)
CMYK	cmyk(70.6%, 57.5%, 0%, 16.1%)
CIE-LAB	lab(43.35, 30.92, -66.29)
CIE-LCH	lch(43.35, 73.14, 295.00°)
OKLab	oklab(52.34% -0.0033 -0.1911)
OKLCH	oklch(52.34% 0.191 269)
XYZ	xyz(17.9244, 13.3922, 65.2456)
Luminance	0.1339 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5BD6 #D6BA3F

analogous

#3FA7D6 #3F5BD6 #6F3FD6

triadic

#3F5BD6 #D63F5B #5BD63F

tetradic

#3F5BD6 #D63FA7 #D6BA3F #3FD66F

square

#3F5BD6 #D63FA7 #D6BA3F #3FD66F

split-complementary

#3F5BD6 #D66F3F #A7D63F

monochromatic

#1B2E7F #2640B2 #3F5BD6 #7186E1 #A4B1EC

Accessibility & contrast

On white

5.71

#3F5BD6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#3F5BD6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5BD6

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5BD6	#FFFFFF	#000000	##FFFFFF
##3F5BD6	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EDA

Deuteranopia (green-blind)

#0060D4

Tritanopia (blue-blind)

#007990

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3f5bd6;
/* rgb */ color: rgb(63, 91, 214);
/* oklch */ color: oklch(52.3% 0.191 269.0);

Tailwind

colors: {
  custom: {
    50: '#8789e4',
    500: '#3f5bd6',
    950: '#000000',
  },
}

SCSS

$custom: #3f5bd6;
$custom-light: #8789e4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5bd6",
  "rgb": {
    "r": 63,
    "g": 91,
    "b": 214
  },
  "hsl": {
    "h": 228.874,
    "s": 64.807,
    "l": 54.314
  },
  "oklch": {
    "l": 0.52342,
    "c": 0.19115,
    "h": 269
  },
  "luminance": 0.13394
}

Semantic roles & 50–950 ramp

primary

#3F5BD6

secondary

#D8CD98

accent

#C940E8

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #3F5BD6

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

Preview Lab → · Contrast checker → · Palette generator →