#3924B0#3924B0

#3924B0 is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 39.7% C 0.205 H 278.4°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#3924B0
RGB	rgb(57, 36, 176)
HSL	hsl(249, 66%, 42%)
HSV	hsv(249, 80%, 69%)
CMYK	cmyk(67.6%, 79.5%, 0%, 31%)
CIE-LAB	lab(27.48, 49.83, -70.10)
CIE-LCH	lch(27.48, 86.01, 305.41°)
OKLab	oklab(39.7% 0.0298 -0.2025)
OKLCH	oklch(39.7% 0.205 278.4)
XYZ	xyz(10.1522, 5.2653, 41.5472)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3924B0 #9BB024

analogous

#2455B0 #3924B0 #7F24B0

triadic

#3924B0 #B03924 #24B039

tetradic

#3924B0 #B02455 #9BB024 #24B07F

square

#3924B0 #B02455 #9BB024 #24B07F

split-complementary

#3924B0 #B07F24 #55B024

monochromatic

#180F4A #291A7D #3924B0 #523AD7 #7F6DE1

Accessibility & contrast

On white

10.23

#3924B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#3924B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3924B0

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3924B0	#FFFFFF	#000000	##FFFFFF
##3924B0	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046B4

Deuteranopia (green-blind)

#003BAE

Tritanopia (blue-blind)

#004F6A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3924b0;
/* rgb */ color: rgb(57, 36, 176);
/* oklch */ color: oklch(39.7% 0.205 278.4);

Tailwind

colors: {
  custom: {
    50: '#8163c9',
    500: '#3924b0',
    950: '#000000',
  },
}

SCSS

$custom: #3924b0;
$custom-light: #8163c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3924b0",
  "rgb": {
    "r": 57,
    "g": 36,
    "b": 176
  },
  "hsl": {
    "h": 249,
    "s": 66.038,
    "l": 41.569
  },
  "oklch": {
    "l": 0.39699,
    "c": 0.20467,
    "h": 278.4
  },
  "luminance": 0.05266
}

Semantic roles & 50–950 ramp

primary

#3924B0

secondary

#B9C868

accent

#E93FCF

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0513

muted

#7D7A82

Preview Lab

Preview with #3924B0

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

Preview Lab → · Contrast checker → · Palette generator →