#3B31AA#3B31AA

#3B31AA is a dark, vivid blue. Relative luminance 0.060; OKLCH L 41.0% C 0.184 H 278.2°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#3B31AA
RGB	rgb(59, 49, 170)
HSL	hsl(245, 55%, 43%)
HSV	hsv(245, 71%, 67%)
CMYK	cmyk(65.3%, 71.2%, 0%, 33.3%)
CIE-LAB	lab(29.48, 41.21, -63.19)
CIE-LCH	lch(29.48, 75.44, 303.11°)
OKLab	oklab(40.97% 0.0262 -0.1824)
OKLCH	oklch(40.97% 0.184 278.2)
XYZ	xyz(10.1553, 6.0279, 38.6507)
Luminance	0.0603 (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

#3B31AA #A0AA31

analogous

#3163AA #3B31AA #7831AA

triadic

#3B31AA #AA3B31 #31AA3B

tetradic

#3B31AA #AA3163 #A0AA31 #31AA78

square

#3B31AA #AA3163 #A0AA31 #31AA78

split-complementary

#3B31AA #AA7831 #63AA31

monochromatic

#1A164B #2B237A #3B31AA #574DCC #847CD9

Accessibility & contrast

On white

9.52

#3B31AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#3B31AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B31AA

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B31AA	#FFFFFF	#000000	##FFFFFF
##3B31AA	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAE

Deuteranopia (green-blind)

#0040A8

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3b31aa;
/* rgb */ color: rgb(59, 49, 170);
/* oklch */ color: oklch(41.0% 0.184 278.2);

Tailwind

colors: {
  custom: {
    50: '#7f6bc4',
    500: '#3b31aa',
    950: '#000000',
  },
}

SCSS

$custom: #3b31aa;
$custom-light: #7f6bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#3b31aa",
  "rgb": {
    "r": 59,
    "g": 49,
    "b": 170
  },
  "hsl": {
    "h": 244.959,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40971,
    "c": 0.18426,
    "h": 278.2
  },
  "luminance": 0.06029
}

Semantic roles & 50–950 ramp

primary

#3B31AA

secondary

#BCC275

accent

#DF49D2

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3B31AA

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

Preview Lab → · Contrast checker → · Palette generator →