#3A42B4#3A42B4

#3A42B4 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.6% C 0.178 H 273.6°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#3A42B4
RGB	rgb(58, 66, 180)
HSL	hsl(236, 51%, 47%)
HSV	hsv(236, 68%, 71%)
CMYK	cmyk(67.8%, 63.3%, 0%, 29.4%)
CIE-LAB	lab(34.17, 34.08, -61.48)
CIE-LCH	lch(34.17, 70.30, 299.00°)
OKLab	oklab(44.63% 0.0112 -0.1774)
OKLCH	oklch(44.63% 0.178 273.6)
XYZ	xyz(11.9286, 8.0902, 44.1041)
Luminance	0.0809 (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

#3A42B4 #B4AC3A

analogous

#3A7FB4 #3A42B4 #6F3AB4

triadic

#3A42B4 #B43A42 #42B43A

tetradic

#3A42B4 #B43A7F #B4AC3A #3AB46F

square

#3A42B4 #B43A7F #B4AC3A #3AB46F

split-complementary

#3A42B4 #B46F3A #7FB43A

monochromatic

#1C2057 #2B3186 #3A42B4 #6067CC #8E93DB

Accessibility & contrast

On white

8.02

#3A42B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3A42B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A42B4

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A42B4	#FFFFFF	#000000	##FFFFFF
##3A42B4	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B8

Deuteranopia (green-blind)

#004BB2

Tritanopia (blue-blind)

#005F75

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3a42b4;
/* rgb */ color: rgb(58, 66, 180);
/* oklch */ color: oklch(44.6% 0.178 273.6);

Tailwind

colors: {
  custom: {
    50: '#7f76cb',
    500: '#3a42b4',
    950: '#000000',
  },
}

SCSS

$custom: #3a42b4;
$custom-light: #7f76cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3a42b4",
  "rgb": {
    "r": 58,
    "g": 66,
    "b": 180
  },
  "hsl": {
    "h": 236.066,
    "s": 51.261,
    "l": 46.667
  },
  "oklch": {
    "l": 0.44625,
    "c": 0.17771,
    "h": 273.6
  },
  "luminance": 0.08091
}

Semantic roles & 50–950 ramp

primary

#3A42B4

secondary

#C5C185

accent

#D14DDB

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3A42B4

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

Preview Lab → · Contrast checker → · Palette generator →