#3D42BB#3D42BB

#3D42BB is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.4% C 0.186 H 274.4°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#3D42BB
RGB	rgb(61, 66, 187)
HSL	hsl(238, 51%, 49%)
HSV	hsv(238, 67%, 73%)
CMYK	cmyk(67.4%, 64.7%, 0%, 26.7%)
CIE-LAB	lab(34.95, 36.92, -64.33)
CIE-LCH	lch(34.95, 74.17, 299.86°)
OKLab	oklab(45.43% 0.0141 -0.1856)
OKLCH	oklch(45.43% 0.186 274.4)
XYZ	xyz(12.8394, 8.4752, 47.9633)
Luminance	0.0848 (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

#3D42BB #BBB63D

analogous

#3D81BB #3D42BB #773DBB

triadic

#3D42BB #BB3D42 #42BB3D

tetradic

#3D42BB #BB3D81 #BBB63D #3DBB77

square

#3D42BB #BB3D81 #BBB63D #3DBB77

split-complementary

#3D42BB #BB773D #81BB3D

monochromatic

#1F215F #2E328D #3D42BB #686CCE #9699DD

Accessibility & contrast

On white

7.79

#3D42BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3D42BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D42BB

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D42BB	#FFFFFF	#000000	##FFFFFF
##3D42BB	1.00	7.79	2.70	7.79
#FFFFFF	7.79	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BF

Deuteranopia (green-blind)

#004DB9

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3d42bb;
/* rgb */ color: rgb(61, 66, 187);
/* oklch */ color: oklch(45.4% 0.186 274.4);

Tailwind

colors: {
  custom: {
    50: '#8277d0',
    500: '#3d42bb',
    950: '#000000',
  },
}

SCSS

$custom: #3d42bb;
$custom-light: #8277d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d42bb",
  "rgb": {
    "r": 61,
    "g": 66,
    "b": 187
  },
  "hsl": {
    "h": 237.619,
    "s": 50.806,
    "l": 48.627
  },
  "oklch": {
    "l": 0.45433,
    "c": 0.18617,
    "h": 274.4
  },
  "luminance": 0.08476
}

Semantic roles & 50–950 ramp

primary

#3D42BB

secondary

#C8C68C

accent

#D54EDA

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3D42BB

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

Preview Lab → · Contrast checker → · Palette generator →