#3923B1#3923B1

#3923B1 is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.7% C 0.207 H 278.3°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#3923B1
RGB	rgb(57, 35, 177)
HSL	hsl(249, 67%, 42%)
HSV	hsv(249, 80%, 69%)
CMYK	cmyk(67.8%, 80.2%, 0%, 30.6%)
CIE-LAB	lab(27.42, 50.61, -70.79)
CIE-LCH	lch(27.42, 87.02, 305.56°)
OKLab	oklab(39.69% 0.03 -0.2045)
OKLCH	oklch(39.69% 0.207 278.3)
XYZ	xyz(10.2216, 5.2454, 42.0602)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3923B1 #9BB123

analogous

#2354B1 #3923B1 #8023B1

triadic

#3923B1 #B13923 #23B139

tetradic

#3923B1 #B12354 #9BB123 #23B180

square

#3923B1 #B12354 #9BB123 #23B180

split-complementary

#3923B1 #B18023 #54B123

monochromatic

#180F4B #29197E #3923B1 #5239D8 #7F6CE2

Accessibility & contrast

On white

10.25

#3923B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#3923B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3923B1

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3923B1	#FFFFFF	#000000	##FFFFFF
##3923B1	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046B5

Deuteranopia (green-blind)

#003BAF

Tritanopia (blue-blind)

#004F6A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3923b1;
/* rgb */ color: rgb(57, 35, 177);
/* oklch */ color: oklch(39.7% 0.207 278.3);

Tailwind

colors: {
  custom: {
    50: '#8163ca',
    500: '#3923b1',
    950: '#000000',
  },
}

SCSS

$custom: #3923b1;
$custom-light: #8163ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3923b1",
  "rgb": {
    "r": 57,
    "g": 35,
    "b": 177
  },
  "hsl": {
    "h": 249.296,
    "s": 66.981,
    "l": 41.569
  },
  "oklch": {
    "l": 0.39693,
    "c": 0.20668,
    "h": 278.3
  },
  "luminance": 0.05246
}

Semantic roles & 50–950 ramp

primary

#3923B1

secondary

#B9C868

accent

#EA3ECF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0513

muted

#7D7A82

Preview Lab

Preview with #3923B1

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

Preview Lab → · Contrast checker → · Palette generator →