#3F29B7#3F29B7

#3F29B7 is a dark, highly saturated blue. Relative luminance 0.061; OKLCH L 41.5% C 0.207 H 279.4°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#3F29B7
RGB	rgb(63, 41, 183)
HSL	hsl(249, 63%, 44%)
HSV	hsv(249, 78%, 72%)
CMYK	cmyk(65.6%, 77.6%, 0%, 28.2%)
CIE-LAB	lab(29.56, 50.09, -70.81)
CIE-LCH	lch(29.56, 86.74, 305.27°)
OKLab	oklab(41.5% 0.0338 -0.2045)
OKLCH	oklch(41.5% 0.207 279.4)
XYZ	xyz(11.3873, 6.0606, 45.3603)
Luminance	0.0606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F29B7 #A1B729

analogous

#295AB7 #3F29B7 #8629B7

triadic

#3F29B7 #B73F29 #29B73F

tetradic

#3F29B7 #B7295A #A1B729 #29B786

square

#3F29B7 #B7295A #A1B729 #29B786

split-complementary

#3F29B7 #B78629 #5AB729

monochromatic

#1D1353 #2E1E85 #3F29B7 #5D47D6 #8979E1

Accessibility & contrast

On white

9.49

#3F29B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#3F29B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F29B7

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F29B7	#FFFFFF	#000000	##FFFFFF
##3F29B7	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BBB

Deuteranopia (green-blind)

#0040B4

Tritanopia (blue-blind)

#00536F

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3f29b7;
/* rgb */ color: rgb(63, 41, 183);
/* oklch */ color: oklch(41.5% 0.207 279.4);

Tailwind

colors: {
  custom: {
    50: '#8467ce',
    500: '#3f29b7',
    950: '#000000',
  },
}

SCSS

$custom: #3f29b7;
$custom-light: #8467ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3f29b7",
  "rgb": {
    "r": 63,
    "g": 41,
    "b": 183
  },
  "hsl": {
    "h": 249.296,
    "s": 63.393,
    "l": 43.922
  },
  "oklch": {
    "l": 0.41499,
    "c": 0.20724,
    "h": 279.4
  },
  "luminance": 0.06062
}

Semantic roles & 50–950 ramp

primary

#3F29B7

secondary

#BCC973

accent

#E641CD

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3F29B7

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

Preview Lab → · Contrast checker → · Palette generator →