#3B42BF#3B42BF

#3B42BF is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.7% C 0.192 H 273.4°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#3B42BF
RGB	rgb(59, 66, 191)
HSL	hsl(237, 53%, 49%)
HSV	hsv(237, 69%, 75%)
CMYK	cmyk(69.1%, 65.4%, 0%, 25.1%)
CIE-LAB	lab(35.18, 38.03, -66.32)
CIE-LCH	lch(35.18, 76.45, 299.84°)
OKLab	oklab(45.67% 0.0115 -0.1915)
OKLCH	oklch(45.67% 0.192 273.4)
XYZ	xyz(13.1527, 8.5866, 50.2443)
Luminance	0.0859 (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

#3B42BF #BFB83B

analogous

#3B84BF #3B42BF #763BBF

triadic

#3B42BF #BF3B42 #42BF3B

tetradic

#3B42BF #BF3B84 #BFB83B #3BBF76

square

#3B42BF #BF3B84 #BFB83B #3BBF76

split-complementary

#3B42BF #BF763B #84BF3B

monochromatic

#1E2261 #2D3290 #3B42BF #676DD0 #969ADF

Accessibility & contrast

On white

7.73

#3B42BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3B42BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B42BF

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B42BF	#FFFFFF	#000000	##FFFFFF
##3B42BF	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C3

Deuteranopia (green-blind)

#004DBD

Tritanopia (blue-blind)

#00637A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3b42bf;
/* rgb */ color: rgb(59, 66, 191);
/* oklch */ color: oklch(45.7% 0.192 273.4);

Tailwind

colors: {
  custom: {
    50: '#8277d3',
    500: '#3b42bf',
    950: '#000000',
  },
}

SCSS

$custom: #3b42bf;
$custom-light: #8277d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3b42bf",
  "rgb": {
    "r": 59,
    "g": 66,
    "b": 191
  },
  "hsl": {
    "h": 236.818,
    "s": 52.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45669,
    "c": 0.19187,
    "h": 273.4
  },
  "luminance": 0.08588
}

Semantic roles & 50–950 ramp

primary

#3B42BF

secondary

#CAC78C

accent

#D54CDC

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3B42BF

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

Preview Lab → · Contrast checker → · Palette generator →