#3927B5#3927B5

#3927B5 is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.6% C 0.208 H 277.5°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#3927B5
RGB	rgb(57, 39, 181)
HSL	hsl(248, 65%, 43%)
HSV	hsv(248, 78%, 71%)
CMYK	cmyk(68.5%, 78.5%, 0%, 29%)
CIE-LAB	lab(28.53, 49.88, -71.35)
CIE-LCH	lch(28.53, 87.06, 304.95°)
OKLab	oklab(40.59% 0.027 -0.2062)
OKLCH	oklch(40.59% 0.208 277.5)
XYZ	xyz(10.7506, 5.6561, 44.2323)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3927B5 #A3B527

analogous

#275CB5 #3927B5 #8027B5

triadic

#3927B5 #B53927 #27B539

tetradic

#3927B5 #B5275C #A3B527 #27B580

square

#3927B5 #B5275C #A3B527 #27B580

split-complementary

#3927B5 #B58027 #5CB527

monochromatic

#191150 #291C83 #3927B5 #5543D6 #8375E1

Accessibility & contrast

On white

9.85

#3927B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#3927B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3927B5

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3927B5	#FFFFFF	#000000	##FFFFFF
##3927B5	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B9

Deuteranopia (green-blind)

#003DB3

Tritanopia (blue-blind)

#00526E

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3927b5;
/* rgb */ color: rgb(57, 39, 181);
/* oklch */ color: oklch(40.6% 0.208 277.5);

Tailwind

colors: {
  custom: {
    50: '#8265cd',
    500: '#3927b5',
    950: '#000000',
  },
}

SCSS

$custom: #3927b5;
$custom-light: #8265cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3927b5",
  "rgb": {
    "r": 57,
    "g": 39,
    "b": 181
  },
  "hsl": {
    "h": 247.606,
    "s": 64.545,
    "l": 43.137
  },
  "oklch": {
    "l": 0.4059,
    "c": 0.20793,
    "h": 277.5
  },
  "luminance": 0.05657
}

Semantic roles & 50–950 ramp

primary

#3927B5

secondary

#BDC96F

accent

#E840D2

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3927B5

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

Preview Lab → · Contrast checker → · Palette generator →