#3A51C7#3A51C7

#3A51C7 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 49.0% C 0.185 H 269.8°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#3A51C7
RGB	rgb(58, 81, 199)
HSL	hsl(230, 56%, 50%)
HSV	hsv(230, 71%, 78%)
CMYK	cmyk(70.9%, 59.3%, 0%, 22%)
CIE-LAB	lab(39.42, 31.27, -64.05)
CIE-LCH	lch(39.42, 71.27, 296.02°)
OKLab	oklab(48.99% -0.0007 -0.1848)
OKLCH	oklch(48.99% 0.185 269.8)
XYZ	xyz(14.9926, 10.9064, 55.3368)
Luminance	0.1091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A51C7 #C7B03A

analogous

#3A97C7 #3A51C7 #6A3AC7

triadic

#3A51C7 #C73A51 #51C73A

tetradic

#3A51C7 #C73A97 #C7B03A #3AC76A

square

#3A51C7 #C73A97 #C7B03A #3AC76A

split-complementary

#3A51C7 #C76A3A #97C73A

monochromatic

#1E2A69 #2B3D98 #3A51C7 #6A7BD5 #99A5E2

Accessibility & contrast

On white

6.60

#3A51C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#3A51C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A51C7

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A51C7	#FFFFFF	#000000	##FFFFFF
##3A51C7	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064CB

Deuteranopia (green-blind)

#0057C5

Tritanopia (blue-blind)

#006F84

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3a51c7;
/* rgb */ color: rgb(58, 81, 199);
/* oklch */ color: oklch(49.0% 0.185 269.8);

Tailwind

colors: {
  custom: {
    50: '#8281d9',
    500: '#3a51c7',
    950: '#000000',
  },
}

SCSS

$custom: #3a51c7;
$custom-light: #8281d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3a51c7",
  "rgb": {
    "r": 58,
    "g": 81,
    "b": 199
  },
  "hsl": {
    "h": 230.213,
    "s": 55.731,
    "l": 50.392
  },
  "oklch": {
    "l": 0.48987,
    "c": 0.18476,
    "h": 269.8
  },
  "luminance": 0.10908
}

Semantic roles & 50–950 ramp

primary

#3A51C7

secondary

#CEC48F

accent

#C749DF

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3A51C7

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

Preview Lab → · Contrast checker → · Palette generator →