#3B31B8#3B31B8

#3B31B8 is a dark, highly saturated blue. Relative luminance 0.066; OKLCH L 42.4% C 0.202 H 276.7°. Best body text is #FFFFFF at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#3B31B8
RGB	rgb(59, 49, 184)
HSL	hsl(244, 58%, 46%)
HSV	hsv(244, 73%, 72%)
CMYK	cmyk(67.9%, 73.4%, 0%, 27.8%)
CIE-LAB	lab(30.85, 45.74, -69.30)
CIE-LCH	lch(30.85, 83.04, 303.43°)
OKLab	oklab(42.35% 0.0236 -0.2002)
OKLCH	oklch(42.35% 0.202 276.7)
XYZ	xyz(11.5509, 6.5861, 46.0006)
Luminance	0.0659 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.29

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B31B8 #AEB831

analogous

#316BB8 #3B31B8 #7E31B8

triadic

#3B31B8 #B83B31 #31B83B

tetradic

#3B31B8 #B8316B #AEB831 #31B87E

square

#3B31B8 #B8316B #AEB831 #31B87E

split-complementary

#3B31B8 #B87E31 #6BB831

monochromatic

#1C1757 #2C2488 #3B31B8 #5E55D2 #8C85DE

Accessibility & contrast

On white

9.06

#3B31B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#3B31B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B31B8

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B31B8	#FFFFFF	#000000	##FFFFFF
##3B31B8	1.00	9.06	2.32	9.06
#FFFFFF	9.06	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBC

Deuteranopia (green-blind)

#0043B6

Tritanopia (blue-blind)

#005772

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3b31b8;
/* rgb */ color: rgb(59, 49, 184);
/* oklch */ color: oklch(42.4% 0.202 276.7);

Tailwind

colors: {
  custom: {
    50: '#826bcf',
    500: '#3b31b8',
    950: '#000000',
  },
}

SCSS

$custom: #3b31b8;
$custom-light: #826bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3b31b8",
  "rgb": {
    "r": 59,
    "g": 49,
    "b": 184
  },
  "hsl": {
    "h": 244.444,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.42353,
    "c": 0.20162,
    "h": 276.7
  },
  "luminance": 0.06587
}

Semantic roles & 50–950 ramp

primary

#3B31B8

secondary

#C2C87D

accent

#E147D6

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3B31B8

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

Preview Lab → · Contrast checker → · Palette generator →