#3A42BA#3A42BA

#3A42BA is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.2% C 0.186 H 273.3°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#3A42BA
RGB	rgb(58, 66, 186)
HSL	hsl(236, 52%, 48%)
HSV	hsv(236, 69%, 73%)
CMYK	cmyk(68.8%, 64.5%, 0%, 27.1%)
CIE-LAB	lab(34.68, 36.18, -64.19)
CIE-LCH	lch(34.68, 73.68, 299.40°)
OKLab	oklab(45.16% 0.0108 -0.1853)
OKLCH	oklch(45.16% 0.186 273.3)
XYZ	xyz(12.5531, 8.3400, 47.3931)
Luminance	0.0834 (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

#3A42BA #BAB23A

analogous

#3A82BA #3A42BA #723ABA

triadic

#3A42BA #BA3A42 #42BA3A

tetradic

#3A42BA #BA3A82 #BAB23A #3ABA72

square

#3A42BA #BA3A82 #BAB23A #3ABA72

split-complementary

#3A42BA #BA723A #82BA3A

monochromatic

#1D215D #2B318B #3A42BA #636ACE #9296DD

Accessibility & contrast

On white

7.87

#3A42BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#3A42BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A42BA

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A42BA	#FFFFFF	#000000	##FFFFFF
##3A42BA	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BE

Deuteranopia (green-blind)

#004CB8

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3a42ba;
/* rgb */ color: rgb(58, 66, 186);
/* oklch */ color: oklch(45.2% 0.186 273.3);

Tailwind

colors: {
  custom: {
    50: '#8176d0',
    500: '#3a42ba',
    950: '#000000',
  },
}

SCSS

$custom: #3a42ba;
$custom-light: #8176d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3a42ba",
  "rgb": {
    "r": 58,
    "g": 66,
    "b": 186
  },
  "hsl": {
    "h": 236.25,
    "s": 52.459,
    "l": 47.843
  },
  "oklch": {
    "l": 0.45158,
    "c": 0.18562,
    "h": 273.3
  },
  "luminance": 0.08341
}

Semantic roles & 50–950 ramp

primary

#3A42BA

secondary

#C8C488

accent

#D34CDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3A42BA

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

Preview Lab → · Contrast checker → · Palette generator →