#3130A4#3130A4

#3130A4 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.5% C 0.180 H 274.8°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#3130A4
RGB	rgb(49, 48, 164)
HSL	hsl(241, 55%, 42%)
HSV	hsv(241, 71%, 64%)
CMYK	cmyk(70.1%, 70.7%, 0%, 35.7%)
CIE-LAB	lab(27.97, 38.56, -62.09)
CIE-LCH	lch(27.97, 73.09, 301.84°)
OKLab	oklab(39.53% 0.0149 -0.1794)
OKLCH	oklch(39.53% 0.18 274.8)
XYZ	xyz(9.0222, 5.4464, 35.6905)
Luminance	0.0545 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3130A4 #A3A430

analogous

#3069A4 #3130A4 #6B30A4

triadic

#3130A4 #A43130 #30A431

tetradic

#3130A4 #A43069 #A3A430 #30A46B

square

#3130A4 #A43069 #A3A430 #30A46B

split-complementary

#3130A4 #A46B30 #69A430

monochromatic

#151445 #232275 #3130A4 #4948C9 #7877D7

Accessibility & contrast

On white

10.05

#3130A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#3130A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3130A4

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3130A4	#FFFFFF	#000000	##FFFFFF
##3130A4	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A8

Deuteranopia (green-blind)

#003DA2

Tritanopia (blue-blind)

#005066

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3130a4;
/* rgb */ color: rgb(49, 48, 164);
/* oklch */ color: oklch(39.5% 0.180 274.8);

Tailwind

colors: {
  custom: {
    50: '#7a69c0',
    500: '#3130a4',
    950: '#000000',
  },
}

SCSS

$custom: #3130a4;
$custom-light: #7a69c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3130a4",
  "rgb": {
    "r": 49,
    "g": 48,
    "b": 164
  },
  "hsl": {
    "h": 240.517,
    "s": 54.717,
    "l": 41.569
  },
  "oklch": {
    "l": 0.39525,
    "c": 0.18005,
    "h": 274.8
  },
  "luminance": 0.05447
}

Semantic roles & 50–950 ramp

primary

#3130A4

secondary

#BFBF70

accent

#DE4ADD

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #3130A4

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

Preview Lab → · Contrast checker → · Palette generator →