#3A3FB5#3A3FB5

#3A3FB5 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.2% C 0.183 H 274.2°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#3A3FB5
RGB	rgb(58, 63, 181)
HSL	hsl(238, 51%, 47%)
HSV	hsv(238, 68%, 71%)
CMYK	cmyk(68%, 65.2%, 0%, 29%)
CIE-LAB	lab(33.54, 36.32, -63.10)
CIE-LCH	lch(33.54, 72.81, 299.92°)
OKLab	oklab(44.19% 0.0134 -0.1821)
OKLCH	oklch(44.19% 0.183 274.2)
XYZ	xyz(11.8602, 7.7897, 44.5856)
Luminance	0.0779 (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

#3A3FB5 #B5B03A

analogous

#3A7DB5 #3A3FB5 #733AB5

triadic

#3A3FB5 #B53A3F #3FB53A

tetradic

#3A3FB5 #B53A7D #B5B03A #3AB573

square

#3A3FB5 #B53A7D #B5B03A #3AB573

split-complementary

#3A3FB5 #B5733A #7DB53A

monochromatic

#1C1F58 #2B2F87 #3A3FB5 #6065CC #8E92DB

Accessibility & contrast

On white

8.21

#3A3FB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3A3FB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A3FB5

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A3FB5	#FFFFFF	#000000	##FFFFFF
##3A3FB5	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B9

Deuteranopia (green-blind)

#0049B3

Tritanopia (blue-blind)

#005E74

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3a3fb5;
/* rgb */ color: rgb(58, 63, 181);
/* oklch */ color: oklch(44.2% 0.183 274.2);

Tailwind

colors: {
  custom: {
    50: '#8074cc',
    500: '#3a3fb5',
    950: '#000000',
  },
}

SCSS

$custom: #3a3fb5;
$custom-light: #8074cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3a3fb5",
  "rgb": {
    "r": 58,
    "g": 63,
    "b": 181
  },
  "hsl": {
    "h": 237.561,
    "s": 51.464,
    "l": 46.863
  },
  "oklch": {
    "l": 0.44191,
    "c": 0.18263,
    "h": 274.2
  },
  "luminance": 0.07791
}

Semantic roles & 50–950 ramp

primary

#3A3FB5

secondary

#C6C385

accent

#D54DDB

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #3A3FB5

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

Preview Lab → · Contrast checker → · Palette generator →