#3A51CC#3A51CC

#3A51CC is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.4% C 0.191 H 269.8°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#3A51CC
RGB	rgb(58, 81, 204)
HSL	hsl(231, 59%, 51%)
HSV	hsv(231, 72%, 80%)
CMYK	cmyk(71.6%, 60.3%, 0%, 20%)
CIE-LAB	lab(39.82, 33.06, -66.30)
CIE-LCH	lch(39.82, 74.08, 296.50°)
OKLab	oklab(49.41% -0.0007 -0.1914)
OKLCH	oklch(49.41% 0.191 269.8)
XYZ	xyz(15.5827, 11.1424, 58.4445)
Luminance	0.1114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A51CC #CCB53A

analogous

#3A9ACC #3A51CC #6C3ACC

triadic

#3A51CC #CC3A51 #51CC3A

tetradic

#3A51CC #CC3A9A #CCB53A #3ACC6C

square

#3A51CC #CC3A9A #CCB53A #3ACC6C

split-complementary

#3A51CC #CC6C3A #9ACC3A

monochromatic

#1D2A6F #293CA0 #3A51CC #6B7CD9 #9BA7E5

Accessibility & contrast

On white

6.50

#3A51CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#3A51CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A51CC

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A51CC	#FFFFFF	#000000	##FFFFFF
##3A51CC	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065D0

Deuteranopia (green-blind)

#0057CA

Tritanopia (blue-blind)

#007087

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3a51cc;
/* rgb */ color: rgb(58, 81, 204);
/* oklch */ color: oklch(49.4% 0.191 269.8);

Tailwind

colors: {
  custom: {
    50: '#8381dc',
    500: '#3a51cc',
    950: '#000000',
  },
}

SCSS

$custom: #3a51cc;
$custom-light: #8381dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3a51cc",
  "rgb": {
    "r": 58,
    "g": 81,
    "b": 204
  },
  "hsl": {
    "h": 230.548,
    "s": 58.871,
    "l": 51.373
  },
  "oklch": {
    "l": 0.49406,
    "c": 0.19137,
    "h": 269.8
  },
  "luminance": 0.11144
}

Semantic roles & 50–950 ramp

primary

#3A51CC

secondary

#D1C791

accent

#C946E2

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3A51CC

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

Preview Lab → · Contrast checker → · Palette generator →