#3A51C5#3A51C5

#3A51C5 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.8% C 0.182 H 269.8°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#3A51C5
RGB	rgb(58, 81, 197)
HSL	hsl(230, 55%, 50%)
HSV	hsv(230, 71%, 77%)
CMYK	cmyk(70.6%, 58.9%, 0%, 22.7%)
CIE-LAB	lab(39.27, 30.55, -63.14)
CIE-LCH	lch(39.27, 70.15, 295.82°)
OKLab	oklab(48.82% -0.0007 -0.1821)
OKLCH	oklch(48.82% 0.182 269.8)
XYZ	xyz(14.7619, 10.8141, 54.1219)
Luminance	0.1082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A51C5 #C5AE3A

analogous

#3A96C5 #3A51C5 #693AC5

triadic

#3A51C5 #C53A51 #51C53A

tetradic

#3A51C5 #C53A96 #C5AE3A #3AC569

square

#3A51C5 #C53A96 #C5AE3A #3AC569

split-complementary

#3A51C5 #C5693A #96C53A

monochromatic

#1E2A66 #2C3E96 #3A51C5 #697BD3 #99A5E1

Accessibility & contrast

On white

6.64

#3A51C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#3A51C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A51C5

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A51C5	#FFFFFF	#000000	##FFFFFF
##3A51C5	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C9

Deuteranopia (green-blind)

#0056C3

Tritanopia (blue-blind)

#006E83

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3a51c5;
/* rgb */ color: rgb(58, 81, 197);
/* oklch */ color: oklch(48.8% 0.182 269.8);

Tailwind

colors: {
  custom: {
    50: '#8281d7',
    500: '#3a51c5',
    950: '#000000',
  },
}

SCSS

$custom: #3a51c5;
$custom-light: #8281d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3a51c5",
  "rgb": {
    "r": 58,
    "g": 81,
    "b": 197
  },
  "hsl": {
    "h": 230.072,
    "s": 54.51,
    "l": 50
  },
  "oklch": {
    "l": 0.48822,
    "c": 0.1821,
    "h": 269.8
  },
  "luminance": 0.10816
}

Semantic roles & 50–950 ramp

primary

#3A51C5

secondary

#CDC28E

accent

#C54ADE

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3A51C5

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

Preview Lab → · Contrast checker → · Palette generator →