#3A3FA4#3A3FA4

#3A3FA4 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.160 H 275.2°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#3A3FA4
RGB	rgb(58, 63, 164)
HSL	hsl(237, 48%, 44%)
HSV	hsv(237, 65%, 64%)
CMYK	cmyk(64.6%, 61.6%, 0%, 35.7%)
CIE-LAB	lab(32.11, 30.40, -55.29)
CIE-LCH	lch(32.11, 63.09, 298.80°)
OKLab	oklab(42.7% 0.0144 -0.1592)
OKLCH	oklch(42.7% 0.16 275.2)
XYZ	xyz(10.2211, 7.1340, 35.9531)
Luminance	0.0713 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A3FA4 #A49F3A

analogous

#3A74A4 #3A3FA4 #6A3AA4

triadic

#3A3FA4 #A43A3F #3FA43A

tetradic

#3A3FA4 #A43A74 #A49F3A #3AA46A

square

#3A3FA4 #A43A74 #A49F3A #3AA46A

split-complementary

#3A3FA4 #A46A3A #74A43A

monochromatic

#1A1C4A #2A2E77 #3A3FA4 #575DC4 #8588D4

Accessibility & contrast

On white

8.65

#3A3FA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3A3FA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A3FA4

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A3FA4	#FFFFFF	#000000	##FFFFFF
##3A3FA4	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A7

Deuteranopia (green-blind)

#0047A2

Tritanopia (blue-blind)

#00586B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3a3fa4;
/* rgb */ color: rgb(58, 63, 164);
/* oklch */ color: oklch(42.7% 0.160 275.2);

Tailwind

colors: {
  custom: {
    50: '#7c74c0',
    500: '#3a3fa4',
    950: '#000000',
  },
}

SCSS

$custom: #3a3fa4;
$custom-light: #7c74c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3a3fa4",
  "rgb": {
    "r": 58,
    "g": 63,
    "b": 164
  },
  "hsl": {
    "h": 237.17,
    "s": 47.748,
    "l": 43.529
  },
  "oklch": {
    "l": 0.42698,
    "c": 0.15986,
    "h": 275.2
  },
  "luminance": 0.07135
}

Semantic roles & 50–950 ramp

primary

#3A3FA4

secondary

#BEBB7C

accent

#D150D7

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3A3FA4

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

Preview Lab → · Contrast checker → · Palette generator →