#3F29B8#3F29B8

#3F29B8 is a dark, highly saturated blue. Relative luminance 0.061; OKLCH L 41.6% C 0.208 H 279.3°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#3F29B8
RGB	rgb(63, 41, 184)
HSL	hsl(249, 64%, 44%)
HSV	hsv(249, 78%, 72%)
CMYK	cmyk(65.8%, 77.7%, 0%, 27.8%)
CIE-LAB	lab(29.67, 50.39, -71.23)
CIE-LCH	lch(29.67, 87.25, 305.28°)
OKLab	oklab(41.6% 0.0336 -0.2057)
OKLCH	oklch(41.6% 0.208 279.3)
XYZ	xyz(11.4918, 6.1024, 45.9104)
Luminance	0.0610 (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

#3F29B8 #A2B829

analogous

#295BB8 #3F29B8 #8729B8

triadic

#3F29B8 #B83F29 #29B83F

tetradic

#3F29B8 #B8295B #A2B829 #29B887

square

#3F29B8 #B8295B #A2B829 #29B887

split-complementary

#3F29B8 #B88729 #5BB829

monochromatic

#1D1354 #2E1E86 #3F29B8 #5E48D6 #8A7AE1

Accessibility & contrast

On white

9.46

#3F29B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#3F29B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F29B8

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F29B8	#FFFFFF	#000000	##FFFFFF
##3F29B8	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BBC

Deuteranopia (green-blind)

#0040B5

Tritanopia (blue-blind)

#005370

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3f29b8;
/* rgb */ color: rgb(63, 41, 184);
/* oklch */ color: oklch(41.6% 0.208 279.3);

Tailwind

colors: {
  custom: {
    50: '#8567cf',
    500: '#3f29b8',
    950: '#000000',
  },
}

SCSS

$custom: #3f29b8;
$custom-light: #8567cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f29b8",
  "rgb": {
    "r": 63,
    "g": 41,
    "b": 184
  },
  "hsl": {
    "h": 249.231,
    "s": 63.556,
    "l": 44.118
  },
  "oklch": {
    "l": 0.41603,
    "c": 0.20841,
    "h": 279.3
  },
  "luminance": 0.06103
}

Semantic roles & 50–950 ramp

primary

#3F29B8

secondary

#BCC973

accent

#E741CD

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3F29B8

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

Preview Lab → · Contrast checker → · Palette generator →