#3133CE#3133CE

#3133CE is a dark, highly saturated blue. Relative luminance 0.075; OKLCH L 44.3% C 0.229 H 271.6°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#3133CE
RGB	rgb(49, 51, 206)
HSL	hsl(239, 62%, 50%)
HSV	hsv(239, 76%, 81%)
CMYK	cmyk(76.2%, 75.2%, 0%, 19.2%)
CIE-LAB	lab(32.87, 50.81, -78.90)
CIE-LCH	lch(32.87, 93.85, 302.78°)
OKLab	oklab(44.29% 0.0064 -0.2284)
OKLCH	oklch(44.29% 0.229 271.6)
XYZ	xyz(13.5873, 7.4754, 59.1074)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 4.05

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3133CE #CECC31

analogous

#3181CE #3133CE #7E31CE

triadic

#3133CE #CE3133 #33CE31

tetradic

#3133CE #CE3181 #CECC31 #31CE7E

square

#3133CE #CE3181 #CECC31 #31CE7E

split-complementary

#3133CE #CE7E31 #81CE31

monochromatic

#191B6B #25279D #3133CE #6264DA #9495E6

Accessibility & contrast

On white

8.42

#3133CE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#3133CE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3133CE

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3133CE	#FFFFFF	#000000	##FFFFFF
##3133CE	1.00	8.42	2.50	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055D2

Deuteranopia (green-blind)

#0045CB

Tritanopia (blue-blind)

#00617F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3133ce;
/* rgb */ color: rgb(49, 51, 206);
/* oklch */ color: oklch(44.3% 0.229 271.6);

Tailwind

colors: {
  custom: {
    50: '#836dde',
    500: '#3133ce',
    950: '#000000',
  },
}

SCSS

$custom: #3133ce;
$custom-light: #836dde;
$custom-dark: #000000;

JSON

{
  "hex": "#3133ce",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 206
  },
  "hsl": {
    "h": 239.236,
    "s": 61.569,
    "l": 50
  },
  "oklch": {
    "l": 0.44291,
    "c": 0.22851,
    "h": 271.6
  },
  "luminance": 0.07477
}

Semantic roles & 50–950 ramp

primary

#3133CE

secondary

#D1D08A

accent

#E343E5

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3133CE

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

Preview Lab → · Contrast checker → · Palette generator →