#3A42B9#3A42B9

#3A42B9 is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.1% C 0.184 H 273.4°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#3A42B9
RGB	rgb(58, 66, 185)
HSL	hsl(236, 52%, 48%)
HSV	hsv(236, 69%, 73%)
CMYK	cmyk(68.6%, 64.3%, 0%, 27.5%)
CIE-LAB	lab(34.60, 35.83, -63.74)
CIE-LCH	lch(34.60, 73.12, 299.34°)
OKLab	oklab(45.07% 0.0109 -0.184)
OKLCH	oklch(45.07% 0.184 273.4)
XYZ	xyz(12.4472, 8.2976, 46.8352)
Luminance	0.0830 (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

#3A42B9 #B9B13A

analogous

#3A82B9 #3A42B9 #713AB9

triadic

#3A42B9 #B93A42 #42B93A

tetradic

#3A42B9 #B93A82 #B9B13A #3AB971

square

#3A42B9 #B93A82 #B9B13A #3AB971

split-complementary

#3A42B9 #B9713A #82B93A

monochromatic

#1D215C #2B318A #3A42B9 #6269CE #9196DC

Accessibility & contrast

On white

7.90

#3A42B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#3A42B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A42B9

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A42B9	#FFFFFF	#000000	##FFFFFF
##3A42B9	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BD

Deuteranopia (green-blind)

#004CB7

Tritanopia (blue-blind)

#006177

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3a42b9;
/* rgb */ color: rgb(58, 66, 185);
/* oklch */ color: oklch(45.1% 0.184 273.4);

Tailwind

colors: {
  custom: {
    50: '#8176cf',
    500: '#3a42b9',
    950: '#000000',
  },
}

SCSS

$custom: #3a42b9;
$custom-light: #8176cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3a42b9",
  "rgb": {
    "r": 58,
    "g": 66,
    "b": 185
  },
  "hsl": {
    "h": 236.22,
    "s": 52.263,
    "l": 47.647
  },
  "oklch": {
    "l": 0.45068,
    "c": 0.18431,
    "h": 273.4
  },
  "luminance": 0.08299
}

Semantic roles & 50–950 ramp

primary

#3A42B9

secondary

#C7C387

accent

#D34CDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3A42B9

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

Preview Lab → · Contrast checker → · Palette generator →