#3A3FA3#3A3FA3

#3A3FA3 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.6% C 0.158 H 275.2°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#3A3FA3
RGB	rgb(58, 63, 163)
HSL	hsl(237, 48%, 43%)
HSV	hsv(237, 64%, 64%)
CMYK	cmyk(64.4%, 61.3%, 0%, 36.1%)
CIE-LAB	lab(32.03, 30.05, -54.82)
CIE-LCH	lch(32.03, 62.51, 298.73°)
OKLab	oklab(42.61% 0.0144 -0.1578)
OKLCH	oklch(42.61% 0.158 275.2)
XYZ	xyz(10.1311, 7.0981, 35.4794)
Luminance	0.0710 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A3FA3 #A39E3A

analogous

#3A73A3 #3A3FA3 #693AA3

triadic

#3A3FA3 #A33A3F #3FA33A

tetradic

#3A3FA3 #A33A73 #A39E3A #3AA369

square

#3A3FA3 #A33A73 #A39E3A #3AA369

split-complementary

#3A3FA3 #A3693A #73A33A

monochromatic

#1A1C49 #2A2E76 #3A3FA3 #575CC3 #8488D3

Accessibility & contrast

On white

8.68

#3A3FA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3A3FA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A3FA3

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A3FA3	#FFFFFF	#000000	##FFFFFF
##3A3FA3	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A6

Deuteranopia (green-blind)

#0047A1

Tritanopia (blue-blind)

#00586B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3a3fa3;
/* rgb */ color: rgb(58, 63, 163);
/* oklch */ color: oklch(42.6% 0.158 275.2);

Tailwind

colors: {
  custom: {
    50: '#7c74bf',
    500: '#3a3fa3',
    950: '#000000',
  },
}

SCSS

$custom: #3a3fa3;
$custom-light: #7c74bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3a3fa3",
  "rgb": {
    "r": 58,
    "g": 63,
    "b": 163
  },
  "hsl": {
    "h": 237.143,
    "s": 47.511,
    "l": 43.333
  },
  "oklch": {
    "l": 0.42613,
    "c": 0.15849,
    "h": 275.2
  },
  "luminance": 0.07099
}

Semantic roles & 50–950 ramp

primary

#3A3FA3

secondary

#BDBA7C

accent

#D151D7

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3A3FA3

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

Preview Lab → · Contrast checker → · Palette generator →