#3F29AF#3F29AF

#3F29AF is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.7% C 0.198 H 280.5°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#3F29AF
RGB	rgb(63, 41, 175)
HSL	hsl(250, 62%, 42%)
HSV	hsv(250, 77%, 69%)
CMYK	cmyk(64%, 76.6%, 0%, 31.4%)
CIE-LAB	lab(28.74, 47.67, -67.40)
CIE-LCH	lch(28.74, 82.56, 305.27°)
OKLab	oklab(40.67% 0.0359 -0.1945)
OKLCH	oklch(40.67% 0.198 280.5)
XYZ	xyz(10.5782, 5.7370, 41.0990)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.04

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F29AF #99AF29

analogous

#2956AF #3F29AF #8229AF

triadic

#3F29AF #AF3F29 #29AF3F

tetradic

#3F29AF #AF2956 #99AF29 #29AF82

square

#3F29AF #AF2956 #99AF29 #29AF82

split-complementary

#3F29AF #AF8229 #56AF29

monochromatic

#1B124C #2D1D7D #3F29AF #5A42D3 #8574DE

Accessibility & contrast

On white

9.78

#3F29AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#3F29AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F29AF

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F29AF	#FFFFFF	#000000	##FFFFFF
##3F29AF	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B3

Deuteranopia (green-blind)

#003FAD

Tritanopia (blue-blind)

#00506B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3f29af;
/* rgb */ color: rgb(63, 41, 175);
/* oklch */ color: oklch(40.7% 0.198 280.5);

Tailwind

colors: {
  custom: {
    50: '#8366c8',
    500: '#3f29af',
    950: '#000000',
  },
}

SCSS

$custom: #3f29af;
$custom-light: #8366c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f29af",
  "rgb": {
    "r": 63,
    "g": 41,
    "b": 175
  },
  "hsl": {
    "h": 249.851,
    "s": 62.037,
    "l": 42.353
  },
  "oklch": {
    "l": 0.40674,
    "c": 0.19781,
    "h": 280.5
  },
  "luminance": 0.05738
}

Semantic roles & 50–950 ramp

primary

#3F29AF

secondary

#B7C66E

accent

#E543CA

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3F29AF

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

Preview Lab → · Contrast checker → · Palette generator →