#3B42C8#3B42C8

#3B42C8 is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 46.5% C 0.203 H 273.0°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#3B42C8
RGB	rgb(59, 66, 200)
HSL	hsl(237, 56%, 51%)
HSV	hsv(237, 71%, 78%)
CMYK	cmyk(70.5%, 67%, 0%, 21.6%)
CIE-LAB	lab(35.97, 41.12, -70.27)
CIE-LCH	lch(35.97, 81.41, 300.33°)
OKLab	oklab(46.49% 0.0107 -0.2031)
OKLCH	oklch(46.49% 0.203 273)
XYZ	xyz(14.1737, 8.9950, 55.6216)
Luminance	0.0900 (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

#3B42C8 #C8C13B

analogous

#3B88C8 #3B42C8 #7A3BC8

triadic

#3B42C8 #C83B42 #42C83B

tetradic

#3B42C8 #C83B88 #C8C13B #3BC87A

square

#3B42C8 #C83B88 #C8C13B #3BC87A

split-complementary

#3B42C8 #C87A3B #88C83B

monochromatic

#1E226B #2B319A #3B42C8 #6B70D5 #9B9EE3

Accessibility & contrast

On white

7.50

#3B42C8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#3B42C8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B42C8

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B42C8	#FFFFFF	#000000	##FFFFFF
##3B42C8	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCC

Deuteranopia (green-blind)

#004EC5

Tritanopia (blue-blind)

#00667F

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3b42c8;
/* rgb */ color: rgb(59, 66, 200);
/* oklch */ color: oklch(46.5% 0.203 273.0);

Tailwind

colors: {
  custom: {
    50: '#8477da',
    500: '#3b42c8',
    950: '#000000',
  },
}

SCSS

$custom: #3b42c8;
$custom-light: #8477da;
$custom-dark: #000000;

JSON

{
  "hex": "#3b42c8",
  "rgb": {
    "r": 59,
    "g": 66,
    "b": 200
  },
  "hsl": {
    "h": 237.021,
    "s": 56.175,
    "l": 50.784
  },
  "oklch": {
    "l": 0.46494,
    "c": 0.20336,
    "h": 273
  },
  "luminance": 0.08996
}

Semantic roles & 50–950 ramp

primary

#3B42C8

secondary

#CFCC90

accent

#D848DF

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3B42C8

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

Preview Lab → · Contrast checker → · Palette generator →