#3133A6#3133A6

#3133A6 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.2% C 0.179 H 274.1°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#3133A6
RGB	rgb(49, 51, 166)
HSL	hsl(239, 54%, 42%)
HSV	hsv(239, 70%, 65%)
CMYK	cmyk(70.5%, 69.3%, 0%, 34.9%)
CIE-LAB	lab(28.83, 37.42, -61.88)
CIE-LCH	lch(28.83, 72.31, 301.16°)
OKLab	oklab(40.2% 0.0127 -0.1788)
OKLCH	oklch(40.2% 0.179 274.1)
XYZ	xyz(9.3311, 5.7729, 36.6915)
Luminance	0.0577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3133A6 #A6A431

analogous

#316EA6 #3133A6 #6931A6

triadic

#3133A6 #A63133 #33A631

tetradic

#3133A6 #A6316E #A6A431 #31A669

square

#3133A6 #A6316E #A6A431 #31A669

split-complementary

#3133A6 #A66931 #6EA631

monochromatic

#151647 #232477 #3133A6 #4A4DCA #7A7BD8

Accessibility & contrast

On white

9.75

#3133A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#3133A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3133A6

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3133A6	#FFFFFF	#000000	##FFFFFF
##3133A6	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AA

Deuteranopia (green-blind)

#003FA4

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3133a6;
/* rgb */ color: rgb(49, 51, 166);
/* oklch */ color: oklch(40.2% 0.179 274.1);

Tailwind

colors: {
  custom: {
    50: '#7a6bc1',
    500: '#3133a6',
    950: '#000000',
  },
}

SCSS

$custom: #3133a6;
$custom-light: #7a6bc1;
$custom-dark: #000000;

JSON

{
  "hex": "#3133a6",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 166
  },
  "hsl": {
    "h": 238.974,
    "s": 54.419,
    "l": 42.157
  },
  "oklch": {
    "l": 0.40204,
    "c": 0.17928,
    "h": 274.1
  },
  "luminance": 0.05774
}

Semantic roles & 50–950 ramp

primary

#3133A6

secondary

#C0BF73

accent

#DB4ADE

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3133A6

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

Preview Lab → · Contrast checker → · Palette generator →