#3F29BA#3F29BA

#3F29BA is a dark, highly saturated blue. Relative luminance 0.062; OKLCH L 41.8% C 0.211 H 279.0°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#3F29BA
RGB	rgb(63, 41, 186)
HSL	hsl(249, 64%, 45%)
HSV	hsv(249, 78%, 73%)
CMYK	cmyk(66.1%, 78%, 0%, 27.1%)
CIE-LAB	lab(29.88, 50.99, -72.07)
CIE-LCH	lch(29.88, 88.29, 305.28°)
OKLab	oklab(41.81% 0.033 -0.2081)
OKLCH	oklch(41.81% 0.211 279)
XYZ	xyz(11.7029, 6.1868, 47.0223)
Luminance	0.0619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.24

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F29BA #A4BA29

analogous

#295CBA #3F29BA #8729BA

triadic

#3F29BA #BA3F29 #29BA3F

tetradic

#3F29BA #BA295C #A4BA29 #29BA87

square

#3F29BA #BA295C #A4BA29 #29BA87

split-complementary

#3F29BA #BA8729 #5CBA29

monochromatic

#1D1356 #2E1E88 #3F29BA #5F49D7 #8B7BE2

Accessibility & contrast

On white

9.39

#3F29BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#3F29BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F29BA

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F29BA	#FFFFFF	#000000	##FFFFFF
##3F29BA	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CBE

Deuteranopia (green-blind)

#0041B7

Tritanopia (blue-blind)

#005471

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3f29ba;
/* rgb */ color: rgb(63, 41, 186);
/* oklch */ color: oklch(41.8% 0.211 279.0);

Tailwind

colors: {
  custom: {
    50: '#8567d0',
    500: '#3f29ba',
    950: '#000000',
  },
}

SCSS

$custom: #3f29ba;
$custom-light: #8567d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f29ba",
  "rgb": {
    "r": 63,
    "g": 41,
    "b": 186
  },
  "hsl": {
    "h": 249.103,
    "s": 63.877,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41812,
    "c": 0.21074,
    "h": 279
  },
  "luminance": 0.06188
}

Semantic roles & 50–950 ramp

primary

#3F29BA

secondary

#BDCA75

accent

#E741CE

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0D0614

muted

#7D7A83

Preview Lab

Preview with #3F29BA

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

Preview Lab → · Contrast checker → · Palette generator →