#3F29B3#3F29B3

#3F29B3 is a dark, highly saturated blue. Relative luminance 0.059; OKLCH L 41.1% C 0.203 H 279.9°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#3F29B3
RGB	rgb(63, 41, 179)
HSL	hsl(250, 63%, 43%)
HSV	hsv(250, 77%, 70%)
CMYK	cmyk(64.8%, 77.1%, 0%, 29.8%)
CIE-LAB	lab(29.15, 48.88, -69.12)
CIE-LCH	lch(29.15, 84.65, 305.27°)
OKLab	oklab(41.09% 0.0349 -0.1995)
OKLCH	oklch(41.09% 0.203 279.9)
XYZ	xyz(10.9769, 5.8964, 43.1988)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.72

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F29B3 #9DB329

analogous

#2958B3 #3F29B3 #8429B3

triadic

#3F29B3 #B33F29 #29B33F

tetradic

#3F29B3 #B32958 #9DB329 #29B384

square

#3F29B3 #B32958 #9DB329 #29B384

split-complementary

#3F29B3 #B38429 #58B329

monochromatic

#1C124F #2D1E81 #3F29B3 #5C45D4 #8777E0

Accessibility & contrast

On white

9.64

#3F29B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#3F29B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F29B3

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F29B3	#FFFFFF	#000000	##FFFFFF
##3F29B3	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB7

Deuteranopia (green-blind)

#003FB1

Tritanopia (blue-blind)

#00516D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3f29b3;
/* rgb */ color: rgb(63, 41, 179);
/* oklch */ color: oklch(41.1% 0.203 279.9);

Tailwind

colors: {
  custom: {
    50: '#8466cb',
    500: '#3f29b3',
    950: '#000000',
  },
}

SCSS

$custom: #3f29b3;
$custom-light: #8466cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f29b3",
  "rgb": {
    "r": 63,
    "g": 41,
    "b": 179
  },
  "hsl": {
    "h": 249.565,
    "s": 62.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.41085,
    "c": 0.20254,
    "h": 279.9
  },
  "luminance": 0.05897
}

Semantic roles & 50–950 ramp

primary

#3F29B3

secondary

#BAC770

accent

#E642CC

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3F29B3

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

Preview Lab → · Contrast checker → · Palette generator →