#3A42B5#3A42B5

#3A42B5 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.7% C 0.179 H 273.6°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#3A42B5
RGB	rgb(58, 66, 181)
HSL	hsl(236, 51%, 47%)
HSV	hsv(236, 68%, 71%)
CMYK	cmyk(68%, 63.5%, 0%, 29%)
CIE-LAB	lab(34.25, 34.43, -61.93)
CIE-LCH	lch(34.25, 70.86, 299.07°)
OKLab	oklab(44.71% 0.0111 -0.1787)
OKLCH	oklch(44.71% 0.179 273.6)
XYZ	xyz(12.0308, 8.1311, 44.6425)
Luminance	0.0813 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A42B5 #B5AD3A

analogous

#3A7FB5 #3A42B5 #703AB5

triadic

#3A42B5 #B53A42 #42B53A

tetradic

#3A42B5 #B53A7F #B5AD3A #3AB570

square

#3A42B5 #B53A7F #B5AD3A #3AB570

split-complementary

#3A42B5 #B5703A #7FB53A

monochromatic

#1C2058 #2B3187 #3A42B5 #6067CC #8E93DB

Accessibility & contrast

On white

8.00

#3A42B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3A42B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A42B5

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A42B5	#FFFFFF	#000000	##FFFFFF
##3A42B5	1.00	8.00	2.63	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B9

Deuteranopia (green-blind)

#004BB3

Tritanopia (blue-blind)

#005F75

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3a42b5;
/* rgb */ color: rgb(58, 66, 181);
/* oklch */ color: oklch(44.7% 0.179 273.6);

Tailwind

colors: {
  custom: {
    50: '#8076cc',
    500: '#3a42b5',
    950: '#000000',
  },
}

SCSS

$custom: #3a42b5;
$custom-light: #8076cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3a42b5",
  "rgb": {
    "r": 58,
    "g": 66,
    "b": 181
  },
  "hsl": {
    "h": 236.098,
    "s": 51.464,
    "l": 46.863
  },
  "oklch": {
    "l": 0.44713,
    "c": 0.17905,
    "h": 273.6
  },
  "luminance": 0.08132
}

Semantic roles & 50–950 ramp

primary

#3A42B5

secondary

#C6C185

accent

#D24DDB

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3A42B5

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

Preview Lab → · Contrast checker → · Palette generator →