#3A42A4#3A42A4

#3A42A4 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.3% C 0.156 H 274.3°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#3A42A4
RGB	rgb(58, 66, 164)
HSL	hsl(235, 48%, 44%)
HSV	hsv(235, 65%, 64%)
CMYK	cmyk(64.6%, 59.8%, 0%, 35.7%)
CIE-LAB	lab(32.87, 28.46, -54.06)
CIE-LCH	lch(32.87, 61.09, 297.76°)
OKLab	oklab(43.26% 0.0117 -0.1556)
OKLCH	oklch(43.26% 0.156 274.3)
XYZ	xyz(10.3918, 7.4754, 36.0100)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A42A4 #A49C3A

analogous

#3A77A4 #3A42A4 #673AA4

triadic

#3A42A4 #A43A42 #42A43A

tetradic

#3A42A4 #A43A77 #A49C3A #3AA467

square

#3A42A4 #A43A77 #A49C3A #3AA467

split-complementary

#3A42A4 #A4673A #77A43A

monochromatic

#1A1E4A #2A3077 #3A42A4 #5760C4 #858BD4

Accessibility & contrast

On white

8.42

#3A42A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#3A42A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A42A4

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A42A4	#FFFFFF	#000000	##FFFFFF
##3A42A4	1.00	8.42	2.50	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A7

Deuteranopia (green-blind)

#0049A2

Tritanopia (blue-blind)

#005A6C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3a42a4;
/* rgb */ color: rgb(58, 66, 164);
/* oklch */ color: oklch(43.3% 0.156 274.3);

Tailwind

colors: {
  custom: {
    50: '#7c76c0',
    500: '#3a42a4',
    950: '#000000',
  },
}

SCSS

$custom: #3a42a4;
$custom-light: #7c76c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3a42a4",
  "rgb": {
    "r": 58,
    "g": 66,
    "b": 164
  },
  "hsl": {
    "h": 235.472,
    "s": 47.748,
    "l": 43.529
  },
  "oklch": {
    "l": 0.43257,
    "c": 0.15601,
    "h": 274.3
  },
  "luminance": 0.07476
}

Semantic roles & 50–950 ramp

primary

#3A42A4

secondary

#BEB97C

accent

#CD50D7

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3A42A4

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

Preview Lab → · Contrast checker → · Palette generator →