#3031AC#3031AC

#3031AC is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.4% C 0.189 H 273.6°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#3031AC
RGB	rgb(48, 49, 172)
HSL	hsl(240, 56%, 43%)
HSV	hsv(240, 72%, 67%)
CMYK	cmyk(72.1%, 71.5%, 0%, 32.5%)
CIE-LAB	lab(28.91, 40.58, -65.36)
CIE-LCH	lch(28.91, 76.93, 301.83°)
OKLab	oklab(40.42% 0.0119 -0.189)
OKLCH	oklch(40.42% 0.189 273.6)
XYZ	xyz(9.7611, 5.8026, 39.6273)
Luminance	0.0580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.31

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3031AC #ACAB30

analogous

#306FAC #3031AC #6D30AC

triadic

#3031AC #AC3031 #31AC30

tetradic

#3031AC #AC306F #ACAB30 #30AC6D

square

#3031AC #AC306F #ACAB30 #30AC6D

split-complementary

#3031AC #AC6D30 #6FAC30

monochromatic

#15164C #23237C #3031AC #4C4DCD #7C7DDA

Accessibility & contrast

On white

9.72

#3031AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#3031AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3031AC

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3031AC	#FFFFFF	#000000	##FFFFFF
##3031AC	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB0

Deuteranopia (green-blind)

#003EAA

Tritanopia (blue-blind)

#00536B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3031ac;
/* rgb */ color: rgb(48, 49, 172);
/* oklch */ color: oklch(40.4% 0.189 273.6);

Tailwind

colors: {
  custom: {
    50: '#7b6ac6',
    500: '#3031ac',
    950: '#000000',
  },
}

SCSS

$custom: #3031ac;
$custom-light: #7b6ac6;
$custom-dark: #000000;

JSON

{
  "hex": "#3031ac",
  "rgb": {
    "r": 48,
    "g": 49,
    "b": 172
  },
  "hsl": {
    "h": 239.516,
    "s": 56.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.40419,
    "c": 0.1894,
    "h": 273.6
  },
  "luminance": 0.05804
}

Semantic roles & 50–950 ramp

primary

#3031AC

secondary

#C3C275

accent

#DE48E0

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3031AC

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

Preview Lab → · Contrast checker → · Palette generator →