#3131C1#3131C1

#3131C1 is a dark, highly saturated blue. Relative luminance 0.067; OKLCH L 42.6% C 0.215 H 272.5°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#3131C1
RGB	rgb(49, 49, 193)
HSL	hsl(240, 60%, 47%)
HSV	hsv(240, 75%, 76%)
CMYK	cmyk(74.6%, 74.6%, 0%, 24.3%)
CIE-LAB	lab(31.11, 47.68, -74.20)
CIE-LCH	lch(31.11, 88.20, 302.72°)
OKLab	oklab(42.64% 0.0095 -0.2147)
OKLCH	oklch(42.64% 0.215 272.5)
XYZ	xyz(11.9873, 6.6986, 51.1029)
Luminance	0.0670 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.30

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3131C1 #C1C131

analogous

#3179C1 #3131C1 #7931C1

triadic

#3131C1 #C13131 #31C131

tetradic

#3131C1 #C13179 #C1C131 #31C179

square

#3131C1 #C13179 #C1C131 #31C179

split-complementary

#3131C1 #C17931 #79C131

monochromatic

#18185F #252590 #3131C1 #5A5AD5 #8B8BE2

Accessibility & contrast

On white

8.97

#3131C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#3131C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3131C1

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3131C1	#FFFFFF	#000000	##FFFFFF
##3131C1	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050C5

Deuteranopia (green-blind)

#0042BE

Tritanopia (blue-blind)

#005B77

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3131c1;
/* rgb */ color: rgb(49, 49, 193);
/* oklch */ color: oklch(42.6% 0.215 272.5);

Tailwind

colors: {
  custom: {
    50: '#806bd5',
    500: '#3131c1',
    950: '#000000',
  },
}

SCSS

$custom: #3131c1;
$custom-light: #806bd5;
$custom-dark: #000000;

JSON

{
  "hex": "#3131c1",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 193
  },
  "hsl": {
    "h": 240,
    "s": 59.504,
    "l": 47.451
  },
  "oklch": {
    "l": 0.42644,
    "c": 0.21496,
    "h": 272.5
  },
  "luminance": 0.067
}

Semantic roles & 50–950 ramp

primary

#3131C1

secondary

#CCCC82

accent

#E345E3

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3131C1

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

Preview Lab → · Contrast checker → · Palette generator →