#3031BC#3031BC

#3031BC is a dark, highly saturated blue. Relative luminance 0.065; OKLCH L 42.1% C 0.209 H 272.5°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#3031BC
RGB	rgb(48, 49, 188)
HSL	hsl(240, 59%, 46%)
HSV	hsv(240, 74%, 74%)
CMYK	cmyk(74.5%, 73.9%, 0%, 26.3%)
CIE-LAB	lab(30.53, 45.95, -72.21)
CIE-LCH	lch(30.53, 85.59, 302.47°)
OKLab	oklab(42.06% 0.0093 -0.209)
OKLCH	oklch(42.06% 0.209 272.5)
XYZ	xyz(11.3913, 6.4547, 48.2127)
Luminance	0.0646 (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

#3031BC #BCBB30

analogous

#3077BC #3031BC #7530BC

triadic

#3031BC #BC3031 #31BC30

tetradic

#3031BC #BC3077 #BCBB30 #30BC75

square

#3031BC #BC3077 #BCBB30 #30BC75

split-complementary

#3031BC #BC7530 #77BC30

monochromatic

#17185A #24248B #3031BC #5556D4 #8687E0

Accessibility & contrast

On white

9.17

#3031BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#3031BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3031BC

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3031BC	#FFFFFF	#000000	##FFFFFF
##3031BC	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FC0

Deuteranopia (green-blind)

#0041BA

Tritanopia (blue-blind)

#005974

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3031bc;
/* rgb */ color: rgb(48, 49, 188);
/* oklch */ color: oklch(42.1% 0.209 272.5);

Tailwind

colors: {
  custom: {
    50: '#7f6bd1',
    500: '#3031bc',
    950: '#000000',
  },
}

SCSS

$custom: #3031bc;
$custom-light: #7f6bd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3031bc",
  "rgb": {
    "r": 48,
    "g": 49,
    "b": 188
  },
  "hsl": {
    "h": 239.571,
    "s": 59.322,
    "l": 46.275
  },
  "oklch": {
    "l": 0.42063,
    "c": 0.20919,
    "h": 272.5
  },
  "luminance": 0.06456
}

Semantic roles & 50–950 ramp

primary

#3031BC

secondary

#CAC97E

accent

#E145E3

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3031BC

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

Preview Lab → · Contrast checker → · Palette generator →