#3133A4#3133A4

#3133A4 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.0% C 0.177 H 274.2°. Best body text is #FFFFFF at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#3133A4
RGB	rgb(49, 51, 164)
HSL	hsl(239, 54%, 42%)
HSV	hsv(239, 70%, 64%)
CMYK	cmyk(70.1%, 68.9%, 0%, 35.7%)
CIE-LAB	lab(28.64, 36.72, -60.98)
CIE-LCH	lch(28.64, 71.19, 301.06°)
OKLab	oklab(40.01% 0.013 -0.1762)
OKLCH	oklch(40.01% 0.177 274.2)
XYZ	xyz(9.1491, 5.7001, 35.7328)
Luminance	0.0570 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3133A4 #A4A231

analogous

#316CA4 #3133A4 #6931A4

triadic

#3133A4 #A43133 #33A431

tetradic

#3133A4 #A4316C #A4A231 #31A469

square

#3133A4 #A4316C #A4A231 #31A469

split-complementary

#3133A4 #A46931 #6CA431

monochromatic

#151646 #232475 #3133A4 #494CC9 #797AD7

Accessibility & contrast

On white

9.81

#3133A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#3133A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3133A4

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3133A4	#FFFFFF	#000000	##FFFFFF
##3133A4	1.00	9.81	2.14	9.81
#FFFFFF	9.81	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A7

Deuteranopia (green-blind)

#003EA2

Tritanopia (blue-blind)

#005167

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3133a4;
/* rgb */ color: rgb(49, 51, 164);
/* oklch */ color: oklch(40.0% 0.177 274.2);

Tailwind

colors: {
  custom: {
    50: '#796bc0',
    500: '#3133a4',
    950: '#000000',
  },
}

SCSS

$custom: #3133a4;
$custom-light: #796bc0;
$custom-dark: #000000;

JSON

{
  "hex": "#3133a4",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 164
  },
  "hsl": {
    "h": 238.957,
    "s": 53.991,
    "l": 41.765
  },
  "oklch": {
    "l": 0.4001,
    "c": 0.17669,
    "h": 274.2
  },
  "luminance": 0.05701
}

Semantic roles & 50–950 ramp

primary

#3133A4

secondary

#BFBE72

accent

#DB4ADD

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #3133A4

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

Preview Lab → · Contrast checker → · Palette generator →