#3133CA#3133CA

#3133CA is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.9% C 0.224 H 271.8°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#3133CA
RGB	rgb(49, 51, 202)
HSL	hsl(239, 61%, 49%)
HSV	hsv(239, 76%, 79%)
CMYK	cmyk(75.7%, 74.8%, 0%, 20.8%)
CIE-LAB	lab(32.44, 49.51, -77.27)
CIE-LCH	lch(32.44, 91.77, 302.65°)
OKLab	oklab(43.87% 0.0071 -0.2237)
OKLCH	oklch(43.87% 0.224 271.8)
XYZ	xyz(13.1075, 7.2835, 56.5807)
Luminance	0.0728 (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

#3133CA #CAC831

analogous

#3180CA #3133CA #7C31CA

triadic

#3133CA #CA3133 #33CA31

tetradic

#3133CA #CA3180 #CAC831 #31CA7C

square

#3133CA #CA3180 #CAC831 #31CA7C

split-complementary

#3133CA #CA7C31 #80CA31

monochromatic

#191A67 #252799 #3133CA #6061D8 #9192E4

Accessibility & contrast

On white

8.55

#3133CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3133CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3133CA

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3133CA	#FFFFFF	#000000	##FFFFFF
##3133CA	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054CE

Deuteranopia (green-blind)

#0045C7

Tritanopia (blue-blind)

#005F7C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3133ca;
/* rgb */ color: rgb(49, 51, 202);
/* oklch */ color: oklch(43.9% 0.224 271.8);

Tailwind

colors: {
  custom: {
    50: '#826ddc',
    500: '#3133ca',
    950: '#000000',
  },
}

SCSS

$custom: #3133ca;
$custom-light: #826ddc;
$custom-dark: #000000;

JSON

{
  "hex": "#3133ca",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 202
  },
  "hsl": {
    "h": 239.216,
    "s": 60.956,
    "l": 49.216
  },
  "oklch": {
    "l": 0.43868,
    "c": 0.22379,
    "h": 271.8
  },
  "luminance": 0.07285
}

Semantic roles & 50–950 ramp

primary

#3133CA

secondary

#CFCE88

accent

#E244E4

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0D0715

muted

#7D7A83

Preview Lab

Preview with #3133CA

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

Preview Lab → · Contrast checker → · Palette generator →