#3F29BC#3F29BC

#3F29BC is a dark, highly saturated blue. Relative luminance 0.063; OKLCH L 42.0% C 0.213 H 278.8°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#3F29BC
RGB	rgb(63, 41, 188)
HSL	hsl(249, 64%, 45%)
HSV	hsv(249, 78%, 74%)
CMYK	cmyk(66.5%, 78.2%, 0%, 26.3%)
CIE-LAB	lab(30.09, 51.59, -72.91)
CIE-LCH	lch(30.09, 89.31, 305.28°)
OKLab	oklab(42.02% 0.0325 -0.2106)
OKLCH	oklch(42.02% 0.213 278.8)
XYZ	xyz(11.9170, 6.2725, 48.1499)
Luminance	0.0627 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.12

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F29BC #A6BC29

analogous

#295CBC #3F29BC #8929BC

triadic

#3F29BC #BC3F29 #29BC3F

tetradic

#3F29BC #BC295C #A6BC29 #29BC89

square

#3F29BC #BC295C #A6BC29 #29BC89

split-complementary

#3F29BC #BC8929 #5CBC29

monochromatic

#1D1358 #2E1E8A #3F29BC #604BD8 #8C7DE3

Accessibility & contrast

On white

9.31

#3F29BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#3F29BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F29BC

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F29BC	#FFFFFF	#000000	##FFFFFF
##3F29BC	1.00	9.31	2.25	9.31
#FFFFFF	9.31	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CC0

Deuteranopia (green-blind)

#0041B9

Tritanopia (blue-blind)

#005572

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3f29bc;
/* rgb */ color: rgb(63, 41, 188);
/* oklch */ color: oklch(42.0% 0.213 278.8);

Tailwind

colors: {
  custom: {
    50: '#8567d2',
    500: '#3f29bc',
    950: '#000000',
  },
}

SCSS

$custom: #3f29bc;
$custom-light: #8567d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f29bc",
  "rgb": {
    "r": 63,
    "g": 41,
    "b": 188
  },
  "hsl": {
    "h": 248.98,
    "s": 64.192,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42022,
    "c": 0.21306,
    "h": 278.8
  },
  "luminance": 0.06273
}

Semantic roles & 50–950 ramp

primary

#3F29BC

secondary

#BECB76

accent

#E741CE

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0D0614

muted

#7D7A83

Preview Lab

Preview with #3F29BC

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

Preview Lab → · Contrast checker → · Palette generator →