#3133C5#3133C5

#3133C5 is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.3% C 0.218 H 272.1°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#3133C5
RGB	rgb(49, 51, 197)
HSL	hsl(239, 60%, 48%)
HSV	hsv(239, 75%, 77%)
CMYK	cmyk(75.1%, 74.1%, 0%, 22.7%)
CIE-LAB	lab(31.92, 47.88, -75.21)
CIE-LCH	lch(31.92, 89.16, 302.48°)
OKLab	oklab(43.34% 0.008 -0.2177)
OKLCH	oklch(43.34% 0.218 272.1)
XYZ	xyz(12.5251, 7.0505, 53.5133)
Luminance	0.0705 (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

#3133C5 #C5C331

analogous

#317DC5 #3133C5 #7931C5

triadic

#3133C5 #C53133 #33C531

tetradic

#3133C5 #C5317D #C5C331 #31C579

square

#3133C5 #C5317D #C5C331 #31C579

split-complementary

#3133C5 #C57931 #7DC531

monochromatic

#191A63 #252694 #3133C5 #5D5ED7 #8E8FE3

Accessibility & contrast

On white

8.71

#3133C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3133C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3133C5

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3133C5	#FFFFFF	#000000	##FFFFFF
##3133C5	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C9

Deuteranopia (green-blind)

#0044C2

Tritanopia (blue-blind)

#005E79

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3133c5;
/* rgb */ color: rgb(49, 51, 197);
/* oklch */ color: oklch(43.3% 0.218 272.1);

Tailwind

colors: {
  custom: {
    50: '#816cd8',
    500: '#3133c5',
    950: '#000000',
  },
}

SCSS

$custom: #3133c5;
$custom-light: #816cd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3133c5",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 197
  },
  "hsl": {
    "h": 239.189,
    "s": 60.163,
    "l": 48.235
  },
  "oklch": {
    "l": 0.43343,
    "c": 0.21784,
    "h": 272.1
  },
  "luminance": 0.07052
}

Semantic roles & 50–950 ramp

primary

#3133C5

secondary

#CDCC85

accent

#E144E3

background

#F8F6FD

surface

#F0EBFB

border

#CBC6D4

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3133C5

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

Preview Lab → · Contrast checker → · Palette generator →