#3A31B1#3A31B1

#3A31B1 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.6% C 0.193 H 277.0°. Best body text is #FFFFFF at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#3A31B1
RGB	rgb(58, 49, 177)
HSL	hsl(244, 57%, 44%)
HSV	hsv(244, 72%, 69%)
CMYK	cmyk(67.2%, 72.3%, 0%, 30.6%)
CIE-LAB	lab(30.08, 43.37, -66.40)
CIE-LCH	lch(30.08, 79.31, 303.15°)
OKLab	oklab(41.58% 0.0236 -0.1918)
OKLCH	oklch(41.58% 0.193 277)
XYZ	xyz(10.7765, 6.2696, 42.2287)
Luminance	0.0627 (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

#3A31B1 #A8B131

analogous

#3168B1 #3A31B1 #7A31B1

triadic

#3A31B1 #B13A31 #31B13A

tetradic

#3A31B1 #B13168 #A8B131 #31B17A

square

#3A31B1 #B13168 #A8B131 #31B17A

split-complementary

#3A31B1 #B17A31 #68B131

monochromatic

#1B1651 #2A2481 #3A31B1 #5951CF #8780DC

Accessibility & contrast

On white

9.32

#3A31B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#3A31B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A31B1

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A31B1	#FFFFFF	#000000	##FFFFFF
##3A31B1	1.00	9.32	2.25	9.32
#FFFFFF	9.32	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB5

Deuteranopia (green-blind)

#0041AF

Tritanopia (blue-blind)

#00556E

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3a31b1;
/* rgb */ color: rgb(58, 49, 177);
/* oklch */ color: oklch(41.6% 0.193 277.0);

Tailwind

colors: {
  custom: {
    50: '#806bc9',
    500: '#3a31b1',
    950: '#000000',
  },
}

SCSS

$custom: #3a31b1;
$custom-light: #806bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#3a31b1",
  "rgb": {
    "r": 58,
    "g": 49,
    "b": 177
  },
  "hsl": {
    "h": 244.219,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.41584,
    "c": 0.19323,
    "h": 277
  },
  "luminance": 0.0627
}

Semantic roles & 50–950 ramp

primary

#3A31B1

secondary

#C0C579

accent

#E048D5

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #3A31B1

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

Preview Lab → · Contrast checker → · Palette generator →