#3130B2#3130B2

#3130B2 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.9% C 0.198 H 273.7°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#3130B2
RGB	rgb(49, 48, 178)
HSL	hsl(240, 58%, 44%)
HSV	hsv(240, 73%, 70%)
CMYK	cmyk(72.5%, 73%, 0%, 30.2%)
CIE-LAB	lab(29.36, 43.29, -68.20)
CIE-LCH	lch(29.36, 80.78, 302.40°)
OKLab	oklab(40.94% 0.0127 -0.1973)
OKLCH	oklch(40.94% 0.198 273.7)
XYZ	xyz(10.3568, 5.9802, 42.7193)
Luminance	0.0598 (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

#3130B2 #B1B230

analogous

#3070B2 #3130B2 #7230B2

triadic

#3130B2 #B23130 #30B231

tetradic

#3130B2 #B23070 #B1B230 #30B272

square

#3130B2 #B23070 #B1B230 #30B272

split-complementary

#3130B2 #B27230 #70B230

monochromatic

#161652 #242382 #3130B2 #5150D0 #8080DD

Accessibility & contrast

On white

9.56

#3130B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#3130B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3130B2

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3130B2	#FFFFFF	#000000	##FFFFFF
##3130B2	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB6

Deuteranopia (green-blind)

#003FB0

Tritanopia (blue-blind)

#00556E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3130b2;
/* rgb */ color: rgb(49, 48, 178);
/* oklch */ color: oklch(40.9% 0.198 273.7);

Tailwind

colors: {
  custom: {
    50: '#7d6aca',
    500: '#3130b2',
    950: '#000000',
  },
}

SCSS

$custom: #3130b2;
$custom-light: #7d6aca;
$custom-dark: #000000;

JSON

{
  "hex": "#3130b2",
  "rgb": {
    "r": 49,
    "g": 48,
    "b": 178
  },
  "hsl": {
    "h": 240.462,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.40941,
    "c": 0.19769,
    "h": 273.7
  },
  "luminance": 0.05981
}

Semantic roles & 50–950 ramp

primary

#3130B2

secondary

#C5C678

accent

#E147E0

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3130B2

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

Preview Lab → · Contrast checker → · Palette generator →