#3131C5#3131C5

#3131C5 is a dark, highly saturated blue. Relative luminance 0.069; OKLCH L 43.1% C 0.220 H 272.3°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#3131C5
RGB	rgb(49, 49, 197)
HSL	hsl(240, 60%, 48%)
HSV	hsv(240, 75%, 77%)
CMYK	cmyk(75.1%, 75.1%, 0%, 22.7%)
CIE-LAB	lab(31.53, 48.98, -75.85)
CIE-LCH	lch(31.53, 90.30, 302.85°)
OKLab	oklab(43.07% 0.0088 -0.2195)
OKLCH	oklch(43.07% 0.22 272.3)
XYZ	xyz(12.4396, 6.8795, 53.4848)
Luminance	0.0688 (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

#3131C5 #C5C531

analogous

#317BC5 #3131C5 #7B31C5

triadic

#3131C5 #C53131 #31C531

tetradic

#3131C5 #C5317B #C5C531 #31C57B

square

#3131C5 #C5317B #C5C531 #31C57B

split-complementary

#3131C5 #C57B31 #7BC531

monochromatic

#191963 #252594 #3131C5 #5D5DD7 #8E8EE3

Accessibility & contrast

On white

8.84

#3131C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#3131C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3131C5

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3131C5	#FFFFFF	#000000	##FFFFFF
##3131C5	1.00	8.84	2.38	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051C9

Deuteranopia (green-blind)

#0043C2

Tritanopia (blue-blind)

#005D79

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3131c5;
/* rgb */ color: rgb(49, 49, 197);
/* oklch */ color: oklch(43.1% 0.220 272.3);

Tailwind

colors: {
  custom: {
    50: '#816bd8',
    500: '#3131c5',
    950: '#000000',
  },
}

SCSS

$custom: #3131c5;
$custom-light: #816bd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3131c5",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 197
  },
  "hsl": {
    "h": 240,
    "s": 60.163,
    "l": 48.235
  },
  "oklch": {
    "l": 0.43066,
    "c": 0.21973,
    "h": 272.3
  },
  "luminance": 0.06881
}

Semantic roles & 50–950 ramp

primary

#3131C5

secondary

#CDCD85

accent

#E344E3

background

#F8F6FD

surface

#F0EBFB

border

#CBC6D4

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3131C5

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

Preview Lab → · Contrast checker → · Palette generator →