#3A51D3#3A51D3

#3A51D3 is a mid, highly saturated blue. Relative luminance 0.115; OKLCH L 50.0% C 0.200 H 269.8°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#3A51D3
RGB	rgb(58, 81, 211)
HSL	hsl(231, 63%, 53%)
HSV	hsv(231, 73%, 83%)
CMYK	cmyk(72.5%, 61.6%, 0%, 17.3%)
CIE-LAB	lab(40.39, 35.54, -69.41)
CIE-LCH	lch(40.39, 77.98, 297.12°)
OKLab	oklab(50% -0.0008 -0.2005)
OKLCH	oklch(50% 0.2 269.8)
XYZ	xyz(16.4412, 11.4858, 62.9659)
Luminance	0.1149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A51D3 #D3BC3A

analogous

#3A9ED3 #3A51D3 #6F3AD3

triadic

#3A51D3 #D33A51 #51D33A

tetradic

#3A51D3 #D33A9E #D3BC3A #3AD36F

square

#3A51D3 #D33A9E #D3BC3A #3AD36F

split-complementary

#3A51D3 #D36F3A #9ED33A

monochromatic

#1B2978 #263AAA #3A51D3 #6C7DDE #9EA9E9

Accessibility & contrast

On white

6.37

#3A51D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#3A51D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A51D3

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A51D3	#FFFFFF	#000000	##FFFFFF
##3A51D3	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066D7

Deuteranopia (green-blind)

#0058D0

Tritanopia (blue-blind)

#00728A

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3a51d3;
/* rgb */ color: rgb(58, 81, 211);
/* oklch */ color: oklch(50.0% 0.200 269.8);

Tailwind

colors: {
  custom: {
    50: '#8581e2',
    500: '#3a51d3',
    950: '#000000',
  },
}

SCSS

$custom: #3a51d3;
$custom-light: #8581e2;
$custom-dark: #000000;

JSON

{
  "hex": "#3a51d3",
  "rgb": {
    "r": 58,
    "g": 81,
    "b": 211
  },
  "hsl": {
    "h": 230.98,
    "s": 63.485,
    "l": 52.745
  },
  "oklch": {
    "l": 0.50002,
    "c": 0.20049,
    "h": 269.8
  },
  "luminance": 0.11488
}

Semantic roles & 50–950 ramp

primary

#3A51D3

secondary

#D6CC93

accent

#CE41E7

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0A15

muted

#7D7C83

Preview Lab

Preview with #3A51D3

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

Preview Lab → · Contrast checker → · Palette generator →