#3130B3#3130B3

#3130B3 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 41.0% C 0.199 H 273.6°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#3130B3
RGB	rgb(49, 48, 179)
HSL	hsl(240, 58%, 45%)
HSV	hsv(240, 73%, 70%)
CMYK	cmyk(72.6%, 73.2%, 0%, 29.8%)
CIE-LAB	lab(29.46, 43.62, -68.63)
CIE-LCH	lch(29.46, 81.32, 302.44°)
OKLab	oklab(41.04% 0.0125 -0.1985)
OKLCH	oklch(41.04% 0.199 273.6)
XYZ	xyz(10.4575, 6.0205, 43.2500)
Luminance	0.0602 (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

#3130B3 #B2B330

analogous

#3071B3 #3130B3 #7330B3

triadic

#3130B3 #B33130 #30B331

tetradic

#3130B3 #B33071 #B2B330 #30B373

square

#3130B3 #B33071 #B2B330 #30B373

split-complementary

#3130B3 #B37330 #71B330

monochromatic

#171652 #242383 #3130B3 #5150D0 #8180DD

Accessibility & contrast

On white

9.53

#3130B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#3130B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3130B3

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3130B3	#FFFFFF	#000000	##FFFFFF
##3130B3	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB7

Deuteranopia (green-blind)

#003FB1

Tritanopia (blue-blind)

#00556F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3130b3;
/* rgb */ color: rgb(49, 48, 179);
/* oklch */ color: oklch(41.0% 0.199 273.6);

Tailwind

colors: {
  custom: {
    50: '#7d6acb',
    500: '#3130b3',
    950: '#000000',
  },
}

SCSS

$custom: #3130b3;
$custom-light: #7d6acb;
$custom-dark: #000000;

JSON

{
  "hex": "#3130b3",
  "rgb": {
    "r": 49,
    "g": 48,
    "b": 179
  },
  "hsl": {
    "h": 240.458,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41043,
    "c": 0.19892,
    "h": 273.6
  },
  "luminance": 0.06022
}

Semantic roles & 50–950 ramp

primary

#3130B3

secondary

#C5C679

accent

#E147E0

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3130B3

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

Preview Lab → · Contrast checker → · Palette generator →