#3130AB#3130AB

#3130AB is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.2% C 0.189 H 274.2°. Best body text is #FFFFFF at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#3130AB
RGB	rgb(49, 48, 171)
HSL	hsl(240, 56%, 43%)
HSV	hsv(240, 72%, 67%)
CMYK	cmyk(71.3%, 71.9%, 0%, 32.9%)
CIE-LAB	lab(28.66, 40.94, -65.17)
CIE-LCH	lch(28.66, 76.96, 302.13°)
OKLab	oklab(40.23% 0.0138 -0.1884)
OKLCH	oklch(40.23% 0.189 274.2)
XYZ	xyz(9.6718, 5.7062, 39.1119)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.42

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3130AB #AAAB30

analogous

#306CAB #3130AB #6E30AB

triadic

#3130AB #AB3130 #30AB31

tetradic

#3130AB #AB306C #AAAB30 #30AB6E

square

#3130AB #AB306C #AAAB30 #30AB6E

split-complementary

#3130AB #AB6E30 #6CAB30

monochromatic

#16154B #23237B #3130AB #4D4CCD #7C7BDA

Accessibility & contrast

On white

9.81

#3130AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#3130AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3130AB

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3130AB	#FFFFFF	#000000	##FFFFFF
##3130AB	1.00	9.81	2.14	9.81
#FFFFFF	9.81	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AF

Deuteranopia (green-blind)

#003EA9

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3130ab;
/* rgb */ color: rgb(49, 48, 171);
/* oklch */ color: oklch(40.2% 0.189 274.2);

Tailwind

colors: {
  custom: {
    50: '#7b69c5',
    500: '#3130ab',
    950: '#000000',
  },
}

SCSS

$custom: #3130ab;
$custom-light: #7b69c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3130ab",
  "rgb": {
    "r": 49,
    "g": 48,
    "b": 171
  },
  "hsl": {
    "h": 240.488,
    "s": 56.164,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40227,
    "c": 0.18895,
    "h": 274.2
  },
  "luminance": 0.05707
}

Semantic roles & 50–950 ramp

primary

#3130AB

secondary

#C2C374

accent

#DF48DE

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3130AB

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

Preview Lab → · Contrast checker → · Palette generator →