#3927B2#3927B2

#3927B2 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.3% C 0.204 H 277.8°. Best body text is #FFFFFF at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#3927B2
RGB	rgb(57, 39, 178)
HSL	hsl(248, 64%, 43%)
HSV	hsv(248, 78%, 70%)
CMYK	cmyk(68%, 78.1%, 0%, 30.2%)
CIE-LAB	lab(28.21, 48.96, -70.09)
CIE-LCH	lch(28.21, 85.50, 304.93°)
OKLab	oklab(40.27% 0.0277 -0.2025)
OKLCH	oklch(40.27% 0.204 277.8)
XYZ	xyz(10.4461, 5.5343, 42.6286)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3927B2 #A0B227

analogous

#275AB2 #3927B2 #7F27B2

triadic

#3927B2 #B23927 #27B239

tetradic

#3927B2 #B2275A #A0B227 #27B27F

square

#3927B2 #B2275A #A0B227 #27B27F

split-complementary

#3927B2 #B27F27 #5AB227

monochromatic

#19114E #291C80 #3927B2 #5441D5 #8173E0

Accessibility & contrast

On white

9.97

#3927B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#3927B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3927B2

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3927B2	#FFFFFF	#000000	##FFFFFF
##3927B2	1.00	9.97	2.11	9.97
#FFFFFF	9.97	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B6

Deuteranopia (green-blind)

#003DB0

Tritanopia (blue-blind)

#00516C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3927b2;
/* rgb */ color: rgb(57, 39, 178);
/* oklch */ color: oklch(40.3% 0.204 277.8);

Tailwind

colors: {
  custom: {
    50: '#8165ca',
    500: '#3927b2',
    950: '#000000',
  },
}

SCSS

$custom: #3927b2;
$custom-light: #8165ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3927b2",
  "rgb": {
    "r": 57,
    "g": 39,
    "b": 178
  },
  "hsl": {
    "h": 247.77,
    "s": 64.055,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4027,
    "c": 0.2044,
    "h": 277.8
  },
  "luminance": 0.05535
}

Semantic roles & 50–950 ramp

primary

#3927B2

secondary

#BCC86D

accent

#E741D2

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3927B2

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

Preview Lab → · Contrast checker → · Palette generator →