#3031AD#3031AD

#3031AD is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.5% C 0.191 H 273.5°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#3031AD
RGB	rgb(48, 49, 173)
HSL	hsl(240, 57%, 43%)
HSV	hsv(240, 72%, 68%)
CMYK	cmyk(72.3%, 71.7%, 0%, 32.2%)
CIE-LAB	lab(29.01, 40.92, -65.80)
CIE-LCH	lch(29.01, 77.48, 301.87°)
OKLab	oklab(40.52% 0.0117 -0.1903)
OKLCH	oklch(40.52% 0.191 273.5)
XYZ	xyz(9.8575, 5.8412, 40.1350)
Luminance	0.0584 (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

#3031AD #ADAC30

analogous

#306FAD #3031AD #6D30AD

triadic

#3031AD #AD3031 #31AD30

tetradic

#3031AD #AD306F #ADAC30 #30AD6D

square

#3031AD #AD306F #ADAC30 #30AD6D

split-complementary

#3031AD #AD6D30 #6FAD30

monochromatic

#15164D #23237D #3031AD #4D4ECE #7D7DDB

Accessibility & contrast

On white

9.68

#3031AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#3031AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3031AD

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3031AD	#FFFFFF	#000000	##FFFFFF
##3031AD	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB1

Deuteranopia (green-blind)

#003EAB

Tritanopia (blue-blind)

#00546B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3031ad;
/* rgb */ color: rgb(48, 49, 173);
/* oklch */ color: oklch(40.5% 0.191 273.5);

Tailwind

colors: {
  custom: {
    50: '#7b6ac7',
    500: '#3031ad',
    950: '#000000',
  },
}

SCSS

$custom: #3031ad;
$custom-light: #7b6ac7;
$custom-dark: #000000;

JSON

{
  "hex": "#3031ad",
  "rgb": {
    "r": 48,
    "g": 49,
    "b": 173
  },
  "hsl": {
    "h": 239.52,
    "s": 56.561,
    "l": 43.333
  },
  "oklch": {
    "l": 0.4052,
    "c": 0.19066,
    "h": 273.5
  },
  "luminance": 0.05842
}

Semantic roles & 50–950 ramp

primary

#3031AD

secondary

#C3C375

accent

#DF48E0

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3031AD

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

Preview Lab → · Contrast checker → · Palette generator →