#3F29BD#3F29BD

#3F29BD is a dark, highly saturated blue. Relative luminance 0.063; OKLCH L 42.1% C 0.214 H 278.7°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#3F29BD
RGB	rgb(63, 41, 189)
HSL	hsl(249, 64%, 45%)
HSV	hsv(249, 78%, 74%)
CMYK	cmyk(66.7%, 78.3%, 0%, 25.9%)
CIE-LAB	lab(30.20, 51.89, -73.32)
CIE-LCH	lch(30.20, 89.83, 305.29°)
OKLab	oklab(42.13% 0.0322 -0.2118)
OKLCH	oklch(42.13% 0.214 278.7)
XYZ	xyz(12.0252, 6.3157, 48.7196)
Luminance	0.0632 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.07

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F29BD #A7BD29

analogous

#295DBD #3F29BD #8929BD

triadic

#3F29BD #BD3F29 #29BD3F

tetradic

#3F29BD #BD295D #A7BD29 #29BD89

square

#3F29BD #BD295D #A7BD29 #29BD89

split-complementary

#3F29BD #BD8929 #5DBD29

monochromatic

#1D1358 #2E1E8B #3F29BD #604BD8 #8D7DE3

Accessibility & contrast

On white

9.28

#3F29BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#3F29BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F29BD

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F29BD	#FFFFFF	#000000	##FFFFFF
##3F29BD	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DC1

Deuteranopia (green-blind)

#0041BA

Tritanopia (blue-blind)

#005573

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3f29bd;
/* rgb */ color: rgb(63, 41, 189);
/* oklch */ color: oklch(42.1% 0.214 278.7);

Tailwind

colors: {
  custom: {
    50: '#8667d2',
    500: '#3f29bd',
    950: '#000000',
  },
}

SCSS

$custom: #3f29bd;
$custom-light: #8667d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f29bd",
  "rgb": {
    "r": 63,
    "g": 41,
    "b": 189
  },
  "hsl": {
    "h": 248.919,
    "s": 64.348,
    "l": 45.098
  },
  "oklch": {
    "l": 0.42127,
    "c": 0.21422,
    "h": 278.7
  },
  "luminance": 0.06317
}

Semantic roles & 50–950 ramp

primary

#3F29BD

secondary

#BFCB77

accent

#E740CF

background

#F9F6FD

surface

#F1EBFA

border

#CBC6D3

text

#0D0614

muted

#7E7A83

Preview Lab

Preview with #3F29BD

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

Preview Lab → · Contrast checker → · Palette generator →