#3A43BB#3A43BB

#3A43BB is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.4% C 0.186 H 273.1°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#3A43BB
RGB	rgb(58, 67, 187)
HSL	hsl(236, 53%, 48%)
HSV	hsv(236, 69%, 73%)
CMYK	cmyk(69%, 64.2%, 0%, 26.7%)
CIE-LAB	lab(35.00, 35.90, -64.25)
CIE-LCH	lch(35.00, 73.60, 299.19°)
OKLab	oklab(45.42% 0.01 -0.1855)
OKLCH	oklch(45.42% 0.186 273.1)
XYZ	xyz(12.7187, 8.5005, 47.9746)
Luminance	0.0850 (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

#3A43BB #BBB23A

analogous

#3A83BB #3A43BB #713ABB

triadic

#3A43BB #BB3A43 #43BB3A

tetradic

#3A43BB #BB3A83 #BBB23A #3ABB71

square

#3A43BB #BB3A83 #BBB23A #3ABB71

split-complementary

#3A43BB #BB713A #83BB3A

monochromatic

#1D225E #2C328C #3A43BB #636BCF #9297DD

Accessibility & contrast

On white

7.78

#3A43BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3A43BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A43BB

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A43BB	#FFFFFF	#000000	##FFFFFF
##3A43BB	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BF

Deuteranopia (green-blind)

#004CB9

Tritanopia (blue-blind)

#006279

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3a43bb;
/* rgb */ color: rgb(58, 67, 187);
/* oklch */ color: oklch(45.4% 0.186 273.1);

Tailwind

colors: {
  custom: {
    50: '#8177d0',
    500: '#3a43bb',
    950: '#000000',
  },
}

SCSS

$custom: #3a43bb;
$custom-light: #8177d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3a43bb",
  "rgb": {
    "r": 58,
    "g": 67,
    "b": 187
  },
  "hsl": {
    "h": 235.814,
    "s": 52.653,
    "l": 48.039
  },
  "oklch": {
    "l": 0.45421,
    "c": 0.18575,
    "h": 273.1
  },
  "luminance": 0.08502
}

Semantic roles & 50–950 ramp

primary

#3A43BB

secondary

#C8C488

accent

#D24CDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3A43BB

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

Preview Lab → · Contrast checker → · Palette generator →