#3131CA#3131CA

#3131CA is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.6% C 0.226 H 272.0°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#3131CA
RGB	rgb(49, 49, 202)
HSL	hsl(240, 61%, 49%)
HSV	hsv(240, 76%, 79%)
CMYK	cmyk(75.7%, 75.7%, 0%, 20.8%)
CIE-LAB	lab(32.06, 50.60, -77.90)
CIE-LCH	lch(32.06, 92.89, 303.00°)
OKLab	oklab(43.6% 0.0079 -0.2255)
OKLCH	oklch(43.6% 0.226 272)
XYZ	xyz(13.0220, 7.1125, 56.5522)
Luminance	0.0711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 4.34

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3131CA #CACA31

analogous

#317ECA #3131CA #7E31CA

triadic

#3131CA #CA3131 #31CA31

tetradic

#3131CA #CA317E #CACA31 #31CA7E

square

#3131CA #CA317E #CACA31 #31CA7E

split-complementary

#3131CA #CA7E31 #7ECA31

monochromatic

#191967 #252599 #3131CA #6060D8 #9191E4

Accessibility & contrast

On white

8.67

#3131CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3131CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3131CA

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3131CA	#FFFFFF	#000000	##FFFFFF
##3131CA	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053CE

Deuteranopia (green-blind)

#0044C7

Tritanopia (blue-blind)

#005F7C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3131ca;
/* rgb */ color: rgb(49, 49, 202);
/* oklch */ color: oklch(43.6% 0.226 272.0);

Tailwind

colors: {
  custom: {
    50: '#826cdc',
    500: '#3131ca',
    950: '#000000',
  },
}

SCSS

$custom: #3131ca;
$custom-light: #826cdc;
$custom-dark: #000000;

JSON

{
  "hex": "#3131ca",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 202
  },
  "hsl": {
    "h": 240,
    "s": 60.956,
    "l": 49.216
  },
  "oklch": {
    "l": 0.43597,
    "c": 0.22564,
    "h": 272
  },
  "luminance": 0.07114
}

Semantic roles & 50–950 ramp

primary

#3131CA

secondary

#CFCF88

accent

#E444E4

background

#F8F6FD

surface

#F0EBFB

border

#CBC6D4

text

#0D0715

muted

#7D7A83

Preview Lab

Preview with #3131CA

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

Preview Lab → · Contrast checker → · Palette generator →