#3A51BD#3A51BD

#3A51BD is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.2% C 0.171 H 269.7°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#3A51BD
RGB	rgb(58, 81, 189)
HSL	hsl(229, 53%, 48%)
HSV	hsv(229, 69%, 74%)
CMYK	cmyk(69.3%, 57.1%, 0%, 25.9%)
CIE-LAB	lab(38.65, 27.67, -59.48)
CIE-LCH	lch(38.65, 65.60, 294.95°)
OKLab	oklab(48.17% -0.0009 -0.1713)
OKLCH	oklch(48.17% 0.171 269.7)
XYZ	xyz(13.8695, 10.4572, 49.4217)
Luminance	0.1046 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A51BD #BDA63A

analogous

#3A92BD #3A51BD #653ABD

triadic

#3A51BD #BD3A51 #51BD3A

tetradic

#3A51BD #BD3A92 #BDA63A #3ABD65

square

#3A51BD #BD3A92 #BDA63A #3ABD65

split-complementary

#3A51BD #BD653A #92BD3A

monochromatic

#1D295F #2C3D8E #3A51BD #6577D0 #93A1DE

Accessibility & contrast

On white

6.79

#3A51BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#3A51BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A51BD

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A51BD	#FFFFFF	#000000	##FFFFFF
##3A51BD	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C1

Deuteranopia (green-blind)

#0055BB

Tritanopia (blue-blind)

#006B7F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3a51bd;
/* rgb */ color: rgb(58, 81, 189);
/* oklch */ color: oklch(48.2% 0.171 269.7);

Tailwind

colors: {
  custom: {
    50: '#8081d2',
    500: '#3a51bd',
    950: '#000000',
  },
}

SCSS

$custom: #3a51bd;
$custom-light: #8081d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3a51bd",
  "rgb": {
    "r": 58,
    "g": 81,
    "b": 189
  },
  "hsl": {
    "h": 229.466,
    "s": 53.036,
    "l": 48.431
  },
  "oklch": {
    "l": 0.4817,
    "c": 0.17133,
    "h": 269.7
  },
  "luminance": 0.10459
}

Semantic roles & 50–950 ramp

primary

#3A51BD

secondary

#C9BE8A

accent

#C34BDC

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3A51BD

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

Preview Lab → · Contrast checker → · Palette generator →