#3F2DB9#3F2DB9

#3F2DB9 is a dark, highly saturated blue. Relative luminance 0.064; OKLCH L 42.2% C 0.206 H 278.7°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#3F2DB9
RGB	rgb(63, 45, 185)
HSL	hsl(248, 61%, 45%)
HSV	hsv(248, 76%, 73%)
CMYK	cmyk(65.9%, 75.7%, 0%, 27.5%)
CIE-LAB	lab(30.49, 48.66, -70.48)
CIE-LCH	lch(30.49, 85.64, 304.62°)
OKLab	oklab(42.21% 0.0311 -0.2035)
OKLCH	oklch(42.21% 0.206 278.7)
XYZ	xyz(11.7424, 6.4353, 46.5129)
Luminance	0.0644 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Indigo Blue

#3A18B1

ΔE00 4.09

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F2DB9 #A7B92D

analogous

#2D61B9 #3F2DB9 #852DB9

triadic

#3F2DB9 #B93F2D #2DB93F

tetradic

#3F2DB9 #B92D61 #A7B92D #2DB985

square

#3F2DB9 #B92D61 #A7B92D #2DB985

split-complementary

#3F2DB9 #B9852D #61B92D

monochromatic

#1D1557 #2E2188 #3F2DB9 #604FD4 #8D80E0

Accessibility & contrast

On white

9.18

#3F2DB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#3F2DB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F2DB9

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F2DB9	#FFFFFF	#000000	##FFFFFF
##3F2DB9	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DBD

Deuteranopia (green-blind)

#0042B6

Tritanopia (blue-blind)

#005671

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3f2db9;
/* rgb */ color: rgb(63, 45, 185);
/* oklch */ color: oklch(42.2% 0.206 278.7);

Tailwind

colors: {
  custom: {
    50: '#8469cf',
    500: '#3f2db9',
    950: '#000000',
  },
}

SCSS

$custom: #3f2db9;
$custom-light: #8469cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f2db9",
  "rgb": {
    "r": 63,
    "g": 45,
    "b": 185
  },
  "hsl": {
    "h": 247.714,
    "s": 60.87,
    "l": 45.098
  },
  "oklch": {
    "l": 0.42206,
    "c": 0.20588,
    "h": 278.7
  },
  "luminance": 0.06436
}

Semantic roles & 50–950 ramp

primary

#3F2DB9

secondary

#BFC979

accent

#E444CF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3F2DB9

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

Preview Lab → · Contrast checker → · Palette generator →