#3F2CB9#3F2CB9

#3F2CB9 is a dark, highly saturated blue. Relative luminance 0.064; OKLCH L 42.1% C 0.207 H 278.8°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#3F2CB9
RGB	rgb(63, 44, 185)
HSL	hsl(248, 62%, 45%)
HSV	hsv(248, 76%, 73%)
CMYK	cmyk(65.9%, 76.2%, 0%, 27.5%)
CIE-LAB	lab(30.30, 49.18, -70.78)
CIE-LCH	lch(30.30, 86.19, 304.79°)
OKLab	oklab(42.08% 0.0316 -0.2044)
OKLCH	oklch(42.08% 0.207 278.8)
XYZ	xyz(11.7047, 6.3599, 46.5003)
Luminance	0.0636 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Indigo Blue

#3A18B1

ΔE00 3.88

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F2CB9 #A6B92C

analogous

#2C60B9 #3F2CB9 #852CB9

triadic

#3F2CB9 #B93F2C #2CB93F

tetradic

#3F2CB9 #B92C60 #A6B92C #2CB985

square

#3F2CB9 #B92C60 #A6B92C #2CB985

split-complementary

#3F2CB9 #B9852C #60B92C

monochromatic

#1D1456 #2E2088 #3F2CB9 #604DD5 #8C7FE1

Accessibility & contrast

On white

9.24

#3F2CB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#3F2CB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F2CB9

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F2CB9	#FFFFFF	#000000	##FFFFFF
##3F2CB9	1.00	9.24	2.27	9.24
#FFFFFF	9.24	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DBD

Deuteranopia (green-blind)

#0042B6

Tritanopia (blue-blind)

#005571

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3f2cb9;
/* rgb */ color: rgb(63, 44, 185);
/* oklch */ color: oklch(42.1% 0.207 278.8);

Tailwind

colors: {
  custom: {
    50: '#8568cf',
    500: '#3f2cb9',
    950: '#000000',
  },
}

SCSS

$custom: #3f2cb9;
$custom-light: #8568cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f2cb9",
  "rgb": {
    "r": 63,
    "g": 44,
    "b": 185
  },
  "hsl": {
    "h": 248.085,
    "s": 61.572,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42078,
    "c": 0.20683,
    "h": 278.8
  },
  "luminance": 0.06361
}

Semantic roles & 50–950 ramp

primary

#3F2CB9

secondary

#BEC978

accent

#E543CF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3F2CB9

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

Preview Lab → · Contrast checker → · Palette generator →