#3A3FA7#3A3FA7

#3A3FA7 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.0% C 0.164 H 275.0°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#3A3FA7
RGB	rgb(58, 63, 167)
HSL	hsl(237, 48%, 44%)
HSV	hsv(237, 65%, 65%)
CMYK	cmyk(65.3%, 62.3%, 0%, 34.5%)
CIE-LAB	lab(32.36, 31.45, -56.69)
CIE-LCH	lch(32.36, 64.83, 299.02°)
OKLab	oklab(42.96% 0.0143 -0.1633)
OKLCH	oklch(42.96% 0.164 275)
XYZ	xyz(10.4952, 7.2437, 37.3968)
Luminance	0.0725 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.03

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A3FA7 #A7A23A

analogous

#3A76A7 #3A3FA7 #6C3AA7

triadic

#3A3FA7 #A73A3F #3FA73A

tetradic

#3A3FA7 #A73A76 #A7A23A #3AA76C

square

#3A3FA7 #A73A76 #A7A23A #3AA76C

split-complementary

#3A3FA7 #A76C3A #76A73A

monochromatic

#1A1D4C #2A2E7A #3A3FA7 #595EC5 #868AD5

Accessibility & contrast

On white

8.57

#3A3FA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#3A3FA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A3FA7

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A3FA7	#FFFFFF	#000000	##FFFFFF
##3A3FA7	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AA

Deuteranopia (green-blind)

#0047A5

Tritanopia (blue-blind)

#00596D

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3a3fa7;
/* rgb */ color: rgb(58, 63, 167);
/* oklch */ color: oklch(43.0% 0.164 275.0);

Tailwind

colors: {
  custom: {
    50: '#7d74c2',
    500: '#3a3fa7',
    950: '#000000',
  },
}

SCSS

$custom: #3a3fa7;
$custom-light: #7d74c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3a3fa7",
  "rgb": {
    "r": 58,
    "g": 63,
    "b": 167
  },
  "hsl": {
    "h": 237.248,
    "s": 48.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.42955,
    "c": 0.16395,
    "h": 275
  },
  "luminance": 0.07245
}

Semantic roles & 50–950 ramp

primary

#3A3FA7

secondary

#BFBC7E

accent

#D250D8

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3A3FA7

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

Preview Lab → · Contrast checker → · Palette generator →