#3031A4#3031A4

#3031A4 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.6% C 0.179 H 274.2°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#3031A4
RGB	rgb(48, 49, 164)
HSL	hsl(239, 55%, 42%)
HSV	hsv(239, 71%, 64%)
CMYK	cmyk(70.7%, 70.1%, 0%, 35.7%)
CIE-LAB	lab(28.13, 37.83, -61.83)
CIE-LCH	lch(28.13, 72.49, 301.46°)
OKLab	oklab(39.62% 0.0131 -0.1787)
OKLCH	oklch(39.62% 0.179 274.2)
XYZ	xyz(9.0158, 5.5045, 35.7021)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3031A4 #A4A330

analogous

#306BA4 #3031A4 #6930A4

triadic

#3031A4 #A43031 #31A430

tetradic

#3031A4 #A4306B #A4A330 #30A469

square

#3031A4 #A4306B #A4A330 #30A469

split-complementary

#3031A4 #A46930 #6BA430

monochromatic

#141545 #222375 #3031A4 #4849C9 #7778D7

Accessibility & contrast

On white

10.00

#3031A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#3031A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3031A4

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3031A4	#FFFFFF	#000000	##FFFFFF
##3031A4	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A7

Deuteranopia (green-blind)

#003DA2

Tritanopia (blue-blind)

#005066

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3031a4;
/* rgb */ color: rgb(48, 49, 164);
/* oklch */ color: oklch(39.6% 0.179 274.2);

Tailwind

colors: {
  custom: {
    50: '#796ac0',
    500: '#3031a4',
    950: '#000000',
  },
}

SCSS

$custom: #3031a4;
$custom-light: #796ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#3031a4",
  "rgb": {
    "r": 48,
    "g": 49,
    "b": 164
  },
  "hsl": {
    "h": 239.483,
    "s": 54.717,
    "l": 41.569
  },
  "oklch": {
    "l": 0.3962,
    "c": 0.1792,
    "h": 274.2
  },
  "luminance": 0.05505
}

Semantic roles & 50–950 ramp

primary

#3031A4

secondary

#BFBF70

accent

#DD4ADE

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #3031A4

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

Preview Lab → · Contrast checker → · Palette generator →