#3A42B7#3A42B7

#3A42B7 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.9% C 0.182 H 273.5°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#3A42B7
RGB	rgb(58, 66, 183)
HSL	hsl(236, 52%, 47%)
HSV	hsv(236, 68%, 72%)
CMYK	cmyk(68.3%, 63.9%, 0%, 28.2%)
CIE-LAB	lab(34.42, 35.13, -62.84)
CIE-LCH	lch(34.42, 71.99, 299.21°)
OKLab	oklab(44.89% 0.011 -0.1813)
OKLCH	oklch(44.89% 0.182 273.5)
XYZ	xyz(12.2375, 8.2137, 45.7311)
Luminance	0.0822 (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

#3A42B7 #B7AF3A

analogous

#3A81B7 #3A42B7 #713AB7

triadic

#3A42B7 #B73A42 #42B73A

tetradic

#3A42B7 #B73A81 #B7AF3A #3AB771

square

#3A42B7 #B73A81 #B7AF3A #3AB771

split-complementary

#3A42B7 #B7713A #81B73A

monochromatic

#1D205A #2B3189 #3A42B7 #6168CD #9095DC

Accessibility & contrast

On white

7.95

#3A42B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3A42B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A42B7

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A42B7	#FFFFFF	#000000	##FFFFFF
##3A42B7	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BB

Deuteranopia (green-blind)

#004BB5

Tritanopia (blue-blind)

#006076

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3a42b7;
/* rgb */ color: rgb(58, 66, 183);
/* oklch */ color: oklch(44.9% 0.182 273.5);

Tailwind

colors: {
  custom: {
    50: '#8076ce',
    500: '#3a42b7',
    950: '#000000',
  },
}

SCSS

$custom: #3a42b7;
$custom-light: #8076ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3a42b7",
  "rgb": {
    "r": 58,
    "g": 66,
    "b": 183
  },
  "hsl": {
    "h": 236.16,
    "s": 51.867,
    "l": 47.255
  },
  "oklch": {
    "l": 0.4489,
    "c": 0.18168,
    "h": 273.5
  },
  "luminance": 0.08215
}

Semantic roles & 50–950 ramp

primary

#3A42B7

secondary

#C7C286

accent

#D24CDB

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3A42B7

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

Preview Lab → · Contrast checker → · Palette generator →