#3924B1#3924B1

#3924B1 is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 39.8% C 0.206 H 278.2°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#3924B1
RGB	rgb(57, 36, 177)
HSL	hsl(249, 66%, 42%)
HSV	hsv(249, 80%, 69%)
CMYK	cmyk(67.8%, 79.7%, 0%, 30.6%)
CIE-LAB	lab(27.59, 50.13, -70.52)
CIE-LCH	lch(27.59, 86.52, 305.41°)
OKLab	oklab(39.81% 0.0295 -0.2037)
OKLCH	oklch(39.81% 0.206 278.2)
XYZ	xyz(10.2515, 5.3050, 42.0702)
Luminance	0.0531 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3924B1 #9CB124

analogous

#2456B1 #3924B1 #8024B1

triadic

#3924B1 #B13924 #24B139

tetradic

#3924B1 #B12456 #9CB124 #24B180

square

#3924B1 #B12456 #9CB124 #24B180

split-complementary

#3924B1 #B18024 #56B124

monochromatic

#180F4B #291A7E #3924B1 #523BD7 #7F6EE1

Accessibility & contrast

On white

10.19

#3924B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#3924B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3924B1

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3924B1	#FFFFFF	#000000	##FFFFFF
##3924B1	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B5

Deuteranopia (green-blind)

#003BAF

Tritanopia (blue-blind)

#004F6B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3924b1;
/* rgb */ color: rgb(57, 36, 177);
/* oklch */ color: oklch(39.8% 0.206 278.2);

Tailwind

colors: {
  custom: {
    50: '#8163ca',
    500: '#3924b1',
    950: '#000000',
  },
}

SCSS

$custom: #3924b1;
$custom-light: #8163ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3924b1",
  "rgb": {
    "r": 57,
    "g": 36,
    "b": 177
  },
  "hsl": {
    "h": 248.936,
    "s": 66.197,
    "l": 41.765
  },
  "oklch": {
    "l": 0.39807,
    "c": 0.20583,
    "h": 278.2
  },
  "luminance": 0.05306
}

Semantic roles & 50–950 ramp

primary

#3924B1

secondary

#BAC869

accent

#E93FD0

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0513

muted

#7D7A82

Preview Lab

Preview with #3924B1

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

Preview Lab → · Contrast checker → · Palette generator →