#3133AF#3133AF

#3133AF is a dark, vivid blue. Relative luminance 0.061; OKLCH L 41.1% C 0.191 H 273.4°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#3133AF
RGB	rgb(49, 51, 175)
HSL	hsl(239, 56%, 44%)
HSV	hsv(239, 72%, 69%)
CMYK	cmyk(72%, 70.9%, 0%, 31.4%)
CIE-LAB	lab(29.70, 40.51, -65.86)
CIE-LCH	lch(29.70, 77.32, 301.60°)
OKLab	oklab(41.09% 0.0115 -0.1904)
OKLCH	oklch(41.09% 0.191 273.4)
XYZ	xyz(10.1857, 6.1148, 41.1926)
Luminance	0.0612 (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

#3133AF #AFAD31

analogous

#3172AF #3133AF #6E31AF

triadic

#3133AF #AF3133 #33AF31

tetradic

#3133AF #AF3172 #AFAD31 #31AF6E

square

#3133AF #AF3172 #AFAD31 #31AF6E

split-complementary

#3133AF #AF6E31 #72AF31

monochromatic

#16174F #24257F #3133AF #4F51CE #7F81DB

Accessibility & contrast

On white

9.45

#3133AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#3133AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3133AF

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3133AF	#FFFFFF	#000000	##FFFFFF
##3133AF	1.00	9.45	2.22	9.45
#FFFFFF	9.45	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB3

Deuteranopia (green-blind)

#0040AD

Tritanopia (blue-blind)

#00556D

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3133af;
/* rgb */ color: rgb(49, 51, 175);
/* oklch */ color: oklch(41.1% 0.191 273.4);

Tailwind

colors: {
  custom: {
    50: '#7c6cc8',
    500: '#3133af',
    950: '#000000',
  },
}

SCSS

$custom: #3133af;
$custom-light: #7c6cc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3133af",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 175
  },
  "hsl": {
    "h": 239.048,
    "s": 56.25,
    "l": 43.922
  },
  "oklch": {
    "l": 0.41092,
    "c": 0.19079,
    "h": 273.4
  },
  "luminance": 0.06116
}

Semantic roles & 50–950 ramp

primary

#3133AF

secondary

#C4C378

accent

#DD48E0

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3133AF

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

Preview Lab → · Contrast checker → · Palette generator →