#3A3FB1#3A3FB1

#3A3FB1 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.8% C 0.177 H 274.4°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#3A3FB1
RGB	rgb(58, 63, 177)
HSL	hsl(237, 51%, 46%)
HSV	hsv(237, 67%, 69%)
CMYK	cmyk(67.2%, 64.4%, 0%, 30.6%)
CIE-LAB	lab(33.20, 34.93, -61.29)
CIE-LCH	lch(33.20, 70.55, 299.68°)
OKLab	oklab(43.83% 0.0137 -0.1768)
OKLCH	oklch(43.83% 0.177 274.4)
XYZ	xyz(11.4556, 7.6279, 42.4551)
Luminance	0.0763 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A3FB1 #B1AC3A

analogous

#3A7AB1 #3A3FB1 #703AB1

triadic

#3A3FB1 #B13A3F #3FB13A

tetradic

#3A3FB1 #B13A7A #B1AC3A #3AB170

square

#3A3FB1 #B13A7A #B1AC3A #3AB170

split-complementary

#3A3FB1 #B1703A #7AB13A

monochromatic

#1C1E55 #2B2F83 #3A3FB1 #5E63CA #8C8FD9

Accessibility & contrast

On white

8.31

#3A3FB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3A3FB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A3FB1

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A3FB1	#FFFFFF	#000000	##FFFFFF
##3A3FB1	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B5

Deuteranopia (green-blind)

#0049AF

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3a3fb1;
/* rgb */ color: rgb(58, 63, 177);
/* oklch */ color: oklch(43.8% 0.177 274.4);

Tailwind

colors: {
  custom: {
    50: '#7f74c9',
    500: '#3a3fb1',
    950: '#000000',
  },
}

SCSS

$custom: #3a3fb1;
$custom-light: #7f74c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3a3fb1",
  "rgb": {
    "r": 58,
    "g": 63,
    "b": 177
  },
  "hsl": {
    "h": 237.479,
    "s": 50.638,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43833,
    "c": 0.17736,
    "h": 274.4
  },
  "luminance": 0.07629
}

Semantic roles & 50–950 ramp

primary

#3A3FB1

secondary

#C4C183

accent

#D44EDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3A3FB1

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

Preview Lab → · Contrast checker → · Palette generator →