#3B31B2#3B31B2

#3B31B2 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.8% C 0.194 H 277.3°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#3B31B2
RGB	rgb(59, 49, 178)
HSL	hsl(245, 57%, 45%)
HSV	hsv(245, 72%, 70%)
CMYK	cmyk(66.9%, 72.5%, 0%, 30.2%)
CIE-LAB	lab(30.25, 43.81, -66.71)
CIE-LCH	lch(30.25, 79.81, 303.29°)
OKLab	oklab(41.76% 0.0247 -0.1927)
OKLCH	oklch(41.76% 0.194 277.3)
XYZ	xyz(10.9352, 6.3398, 42.7583)
Luminance	0.0634 (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

#3B31B2 #A8B231

analogous

#3168B2 #3B31B2 #7C31B2

triadic

#3B31B2 #B23B31 #31B23B

tetradic

#3B31B2 #B23168 #A8B231 #31B27C

square

#3B31B2 #B23168 #A8B231 #31B27C

split-complementary

#3B31B2 #B27C31 #68B231

monochromatic

#1B1752 #2B2482 #3B31B2 #5B51CF #8881DC

Accessibility & contrast

On white

9.26

#3B31B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#3B31B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B31B2

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B31B2	#FFFFFF	#000000	##FFFFFF
##3B31B2	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB6

Deuteranopia (green-blind)

#0042B0

Tritanopia (blue-blind)

#00556E

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3b31b2;
/* rgb */ color: rgb(59, 49, 178);
/* oklch */ color: oklch(41.8% 0.194 277.3);

Tailwind

colors: {
  custom: {
    50: '#816bca',
    500: '#3b31b2',
    950: '#000000',
  },
}

SCSS

$custom: #3b31b2;
$custom-light: #816bca;
$custom-dark: #000000;

JSON

{
  "hex": "#3b31b2",
  "rgb": {
    "r": 59,
    "g": 49,
    "b": 178
  },
  "hsl": {
    "h": 244.651,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41755,
    "c": 0.19425,
    "h": 277.3
  },
  "luminance": 0.06341
}

Semantic roles & 50–950 ramp

primary

#3B31B2

secondary

#C0C579

accent

#E048D4

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #3B31B2

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

Preview Lab → · Contrast checker → · Palette generator →