#3031A5#3031A5

#3031A5 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.7% C 0.180 H 274.1°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#3031A5
RGB	rgb(48, 49, 165)
HSL	hsl(239, 55%, 42%)
HSV	hsv(239, 71%, 65%)
CMYK	cmyk(70.9%, 70.3%, 0%, 35.3%)
CIE-LAB	lab(28.22, 38.18, -62.28)
CIE-LCH	lch(28.22, 73.05, 301.51°)
OKLab	oklab(39.72% 0.0129 -0.18)
OKLCH	oklch(39.72% 0.18 274.1)
XYZ	xyz(9.1065, 5.5407, 36.1796)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3031A5 #A5A430

analogous

#306CA5 #3031A5 #6A30A5

triadic

#3031A5 #A53031 #31A530

tetradic

#3031A5 #A5306C #A5A430 #30A56A

square

#3031A5 #A5306C #A5A430 #30A56A

split-complementary

#3031A5 #A56A30 #6CA530

monochromatic

#141546 #222376 #3031A5 #4849CA #7879D8

Accessibility & contrast

On white

9.96

#3031A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#3031A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3031A5

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3031A5	#FFFFFF	#000000	##FFFFFF
##3031A5	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A9

Deuteranopia (green-blind)

#003DA3

Tritanopia (blue-blind)

#005167

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3031a5;
/* rgb */ color: rgb(48, 49, 165);
/* oklch */ color: oklch(39.7% 0.180 274.1);

Tailwind

colors: {
  custom: {
    50: '#796ac1',
    500: '#3031a5',
    950: '#000000',
  },
}

SCSS

$custom: #3031a5;
$custom-light: #796ac1;
$custom-dark: #000000;

JSON

{
  "hex": "#3031a5",
  "rgb": {
    "r": 48,
    "g": 49,
    "b": 165
  },
  "hsl": {
    "h": 239.487,
    "s": 54.93,
    "l": 41.765
  },
  "oklch": {
    "l": 0.39719,
    "c": 0.18048,
    "h": 274.1
  },
  "luminance": 0.05542
}

Semantic roles & 50–950 ramp

primary

#3031A5

secondary

#C0BF71

accent

#DD4ADE

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #3031A5

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

Preview Lab → · Contrast checker → · Palette generator →