#3A42C9#3A42C9

#3A42C9 is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 46.5% C 0.205 H 272.7°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#3A42C9
RGB	rgb(58, 66, 201)
HSL	hsl(237, 57%, 51%)
HSV	hsv(237, 71%, 79%)
CMYK	cmyk(71.1%, 67.2%, 0%, 21.2%)
CIE-LAB	lab(36.01, 41.34, -70.80)
CIE-LCH	lch(36.01, 81.99, 300.28°)
OKLab	oklab(46.53% 0.0095 -0.2047)
OKLCH	oklch(46.53% 0.205 272.7)
XYZ	xyz(14.2322, 9.0116, 56.2364)
Luminance	0.0901 (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

#3A42C9 #C9C13A

analogous

#3A8AC9 #3A42C9 #793AC9

triadic

#3A42C9 #C93A42 #42C93A

tetradic

#3A42C9 #C93A8A #C9C13A #3AC979

square

#3A42C9 #C93A8A #C9C13A #3AC979

split-complementary

#3A42C9 #C9793A #8AC93A

monochromatic

#1D226B #2B319B #3A42C9 #6A70D6 #9A9EE3

Accessibility & contrast

On white

7.49

#3A42C9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#3A42C9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A42C9

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A42C9	#FFFFFF	#000000	##FFFFFF
##3A42C9	1.00	7.49	2.80	7.49
#FFFFFF	7.49	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCD

Deuteranopia (green-blind)

#004EC6

Tritanopia (blue-blind)

#006680

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3a42c9;
/* rgb */ color: rgb(58, 66, 201);
/* oklch */ color: oklch(46.5% 0.205 272.7);

Tailwind

colors: {
  custom: {
    50: '#8477db',
    500: '#3a42c9',
    950: '#000000',
  },
}

SCSS

$custom: #3a42c9;
$custom-light: #8477db;
$custom-dark: #000000;

JSON

{
  "hex": "#3a42c9",
  "rgb": {
    "r": 58,
    "g": 66,
    "b": 201
  },
  "hsl": {
    "h": 236.643,
    "s": 56.972,
    "l": 50.784
  },
  "oklch": {
    "l": 0.4653,
    "c": 0.20488,
    "h": 272.7
  },
  "luminance": 0.09013
}

Semantic roles & 50–950 ramp

primary

#3A42C9

secondary

#CFCC90

accent

#D848E0

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3A42C9

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

Preview Lab → · Contrast checker → · Palette generator →