#3133B6#3133B6

#3133B6 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.8% C 0.200 H 273.0°. Best body text is #FFFFFF at 9.21:1 contrast (WCAG AA passes).

Color values

HEX	#3133B6
RGB	rgb(49, 51, 182)
HSL	hsl(239, 58%, 45%)
HSV	hsv(239, 73%, 71%)
CMYK	cmyk(73.1%, 72%, 0%, 28.6%)
CIE-LAB	lab(30.39, 42.89, -68.89)
CIE-LCH	lch(30.39, 81.15, 301.91°)
OKLab	oklab(41.8% 0.0104 -0.1993)
OKLCH	oklch(41.8% 0.2 273)
XYZ	xyz(10.8911, 6.3969, 44.9076)
Luminance	0.0640 (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

#3133B6 #B6B431

analogous

#3175B6 #3133B6 #7231B6

triadic

#3133B6 #B63133 #33B631

tetradic

#3133B6 #B63175 #B6B431 #31B672

square

#3133B6 #B63175 #B6B431 #31B672

split-complementary

#3133B6 #B67231 #75B631

monochromatic

#171856 #242586 #3133B6 #5355D1 #8485DE

Accessibility & contrast

On white

9.21

#3133B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#3133B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3133B6

9.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3133B6	#FFFFFF	#000000	##FFFFFF
##3133B6	1.00	9.21	2.28	9.21
#FFFFFF	9.21	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBA

Deuteranopia (green-blind)

#0041B4

Tritanopia (blue-blind)

#005871

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3133b6;
/* rgb */ color: rgb(49, 51, 182);
/* oklch */ color: oklch(41.8% 0.200 273.0);

Tailwind

colors: {
  custom: {
    50: '#7e6ccd',
    500: '#3133b6',
    950: '#000000',
  },
}

SCSS

$custom: #3133b6;
$custom-light: #7e6ccd;
$custom-dark: #000000;

JSON

{
  "hex": "#3133b6",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 182
  },
  "hsl": {
    "h": 239.098,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.41797,
    "c": 0.19955,
    "h": 273
  },
  "luminance": 0.06398
}

Semantic roles & 50–950 ramp

primary

#3133B6

secondary

#C7C67C

accent

#DF47E1

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #3133B6

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

Preview Lab → · Contrast checker → · Palette generator →