#3131CE#3131CE

#3131CE is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 44.0% C 0.230 H 271.8°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#3131CE
RGB	rgb(49, 49, 206)
HSL	hsl(240, 62%, 50%)
HSV	hsv(240, 76%, 81%)
CMYK	cmyk(76.2%, 76.2%, 0%, 19.2%)
CIE-LAB	lab(32.49, 51.88, -79.52)
CIE-LCH	lch(32.49, 94.95, 303.12°)
OKLab	oklab(44.03% 0.0071 -0.2302)
OKLCH	oklch(44.03% 0.23 271.8)
XYZ	xyz(13.5018, 7.3044, 59.0789)
Luminance	0.0731 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 4.17

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3131CE #CECE31

analogous

#317FCE #3131CE #7F31CE

triadic

#3131CE #CE3131 #31CE31

tetradic

#3131CE #CE3180 #CECE31 #31CE80

square

#3131CE #CE3180 #CECE31 #31CE80

split-complementary

#3131CE #CE8031 #80CE31

monochromatic

#19196B #25259D #3131CE #6262DA #9494E6

Accessibility & contrast

On white

8.53

#3131CE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3131CE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3131CE

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3131CE	#FFFFFF	#000000	##FFFFFF
##3131CE	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054D2

Deuteranopia (green-blind)

#0044CB

Tritanopia (blue-blind)

#00607E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3131ce;
/* rgb */ color: rgb(49, 49, 206);
/* oklch */ color: oklch(44.0% 0.230 271.8);

Tailwind

colors: {
  custom: {
    50: '#836cde',
    500: '#3131ce',
    950: '#000000',
  },
}

SCSS

$custom: #3131ce;
$custom-light: #836cde;
$custom-dark: #000000;

JSON

{
  "hex": "#3131ce",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 206
  },
  "hsl": {
    "h": 240,
    "s": 61.569,
    "l": 50
  },
  "oklch": {
    "l": 0.44025,
    "c": 0.23032,
    "h": 271.8
  },
  "luminance": 0.07306
}

Semantic roles & 50–950 ramp

primary

#3131CE

secondary

#D1D18A

accent

#E543E5

background

#F9F6FD

surface

#F1EBFB

border

#CBC6D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3131CE

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

Preview Lab → · Contrast checker → · Palette generator →