#3B31B7#3B31B7

#3B31B7 is a dark, highly saturated blue. Relative luminance 0.065; OKLCH L 42.3% C 0.200 H 276.8°. Best body text is #FFFFFF at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#3B31B7
RGB	rgb(59, 49, 183)
HSL	hsl(244, 58%, 45%)
HSV	hsv(244, 73%, 72%)
CMYK	cmyk(67.8%, 73.2%, 0%, 28.2%)
CIE-LAB	lab(30.75, 45.42, -68.87)
CIE-LCH	lch(30.75, 82.50, 303.40°)
OKLab	oklab(42.25% 0.0237 -0.199)
OKLCH	oklch(42.25% 0.2 276.8)
XYZ	xyz(11.4464, 6.5443, 45.4505)
Luminance	0.0654 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.23

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B31B7 #ADB731

analogous

#316AB7 #3B31B7 #7E31B7

triadic

#3B31B7 #B73B31 #31B73B

tetradic

#3B31B7 #B7316A #ADB731 #31B77E

square

#3B31B7 #B7316A #ADB731 #31B77E

split-complementary

#3B31B7 #B77E31 #6AB731

monochromatic

#1C1756 #2B2487 #3B31B7 #5D54D1 #8B84DE

Accessibility & contrast

On white

9.09

#3B31B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#3B31B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B31B7

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B31B7	#FFFFFF	#000000	##FFFFFF
##3B31B7	1.00	9.09	2.31	9.09
#FFFFFF	9.09	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBB

Deuteranopia (green-blind)

#0043B5

Tritanopia (blue-blind)

#005771

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3b31b7;
/* rgb */ color: rgb(59, 49, 183);
/* oklch */ color: oklch(42.3% 0.200 276.8);

Tailwind

colors: {
  custom: {
    50: '#826bce',
    500: '#3b31b7',
    950: '#000000',
  },
}

SCSS

$custom: #3b31b7;
$custom-light: #826bce;
$custom-dark: #000000;

JSON

{
  "hex": "#3b31b7",
  "rgb": {
    "r": 59,
    "g": 49,
    "b": 183
  },
  "hsl": {
    "h": 244.478,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.42253,
    "c": 0.2004,
    "h": 276.8
  },
  "luminance": 0.06545
}

Semantic roles & 50–950 ramp

primary

#3B31B7

secondary

#C2C87C

accent

#E147D5

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3B31B7

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

Preview Lab → · Contrast checker → · Palette generator →