#3133C9#3133C9

#3133C9 is a dark, highly saturated blue. Relative luminance 0.072; OKLCH L 43.8% C 0.223 H 271.9°. Best body text is #FFFFFF at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#3133C9
RGB	rgb(49, 51, 201)
HSL	hsl(239, 61%, 49%)
HSV	hsv(239, 76%, 79%)
CMYK	cmyk(75.6%, 74.6%, 0%, 21.2%)
CIE-LAB	lab(32.34, 49.19, -76.86)
CIE-LCH	lch(32.34, 91.25, 302.62°)
OKLab	oklab(43.76% 0.0073 -0.2225)
OKLCH	oklch(43.76% 0.223 271.9)
XYZ	xyz(12.9895, 7.2363, 55.9592)
Luminance	0.0724 (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

#3133C9 #C9C731

analogous

#317FC9 #3133C9 #7B31C9

triadic

#3133C9 #C93133 #33C931

tetradic

#3133C9 #C9317F #C9C731 #31C97B

square

#3133C9 #C9317F #C9C731 #31C97B

split-complementary

#3133C9 #C97B31 #7FC931

monochromatic

#191A67 #252798 #3133C9 #5F61D8 #9091E4

Accessibility & contrast

On white

8.58

#3133C9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#3133C9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3133C9

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3133C9	#FFFFFF	#000000	##FFFFFF
##3133C9	1.00	8.58	2.45	8.58
#FFFFFF	8.58	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053CD

Deuteranopia (green-blind)

#0044C6

Tritanopia (blue-blind)

#005F7C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3133c9;
/* rgb */ color: rgb(49, 51, 201);
/* oklch */ color: oklch(43.8% 0.223 271.9);

Tailwind

colors: {
  custom: {
    50: '#826ddb',
    500: '#3133c9',
    950: '#000000',
  },
}

SCSS

$custom: #3133c9;
$custom-light: #826ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#3133c9",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 201
  },
  "hsl": {
    "h": 239.211,
    "s": 60.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.43762,
    "c": 0.22261,
    "h": 271.9
  },
  "luminance": 0.07238
}

Semantic roles & 50–950 ramp

primary

#3133C9

secondary

#CFCE87

accent

#E244E4

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3133C9

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

Preview Lab → · Contrast checker → · Palette generator →