#3130B5#3130B5

#3130B5 is a dark, highly saturated blue. Relative luminance 0.061; OKLCH L 41.3% C 0.201 H 273.5°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#3130B5
RGB	rgb(49, 48, 181)
HSL	hsl(240, 58%, 45%)
HSV	hsv(240, 73%, 71%)
CMYK	cmyk(72.9%, 73.5%, 0%, 29%)
CIE-LAB	lab(29.67, 44.29, -69.49)
CIE-LCH	lch(29.67, 82.40, 302.51°)
OKLab	oklab(41.25% 0.0121 -0.201)
OKLCH	oklch(41.25% 0.201 273.5)
XYZ	xyz(10.6613, 6.1020, 44.3230)
Luminance	0.0610 (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

#3130B5 #B4B530

analogous

#3072B5 #3130B5 #7330B5

triadic

#3130B5 #B53130 #30B531

tetradic

#3130B5 #B53072 #B4B530 #30B573

square

#3130B5 #B53072 #B4B530 #30B573

split-complementary

#3130B5 #B57330 #72B530

monochromatic

#171654 #242385 #3130B5 #5251D1 #8282DE

Accessibility & contrast

On white

9.46

#3130B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#3130B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3130B5

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3130B5	#FFFFFF	#000000	##FFFFFF
##3130B5	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB9

Deuteranopia (green-blind)

#003FB3

Tritanopia (blue-blind)

#005670

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3130b5;
/* rgb */ color: rgb(49, 48, 181);
/* oklch */ color: oklch(41.3% 0.201 273.5);

Tailwind

colors: {
  custom: {
    50: '#7e6acc',
    500: '#3130b5',
    950: '#000000',
  },
}

SCSS

$custom: #3130b5;
$custom-light: #7e6acc;
$custom-dark: #000000;

JSON

{
  "hex": "#3130b5",
  "rgb": {
    "r": 49,
    "g": 48,
    "b": 181
  },
  "hsl": {
    "h": 240.451,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.4125,
    "c": 0.20138,
    "h": 273.5
  },
  "luminance": 0.06103
}

Semantic roles & 50–950 ramp

primary

#3130B5

secondary

#C6C77A

accent

#E146E0

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0614

muted

#7C7A82

Preview Lab

Preview with #3130B5

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

Preview Lab → · Contrast checker → · Palette generator →