#3031B9#3031B9

#3031B9 is a dark, highly saturated blue. Relative luminance 0.063; OKLCH L 41.8% C 0.206 H 272.7°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#3031B9
RGB	rgb(48, 49, 185)
HSL	hsl(240, 59%, 46%)
HSV	hsv(240, 74%, 73%)
CMYK	cmyk(74.1%, 73.5%, 0%, 27.5%)
CIE-LAB	lab(30.22, 44.95, -70.95)
CIE-LCH	lch(30.22, 83.99, 302.36°)
OKLab	oklab(41.75% 0.0098 -0.2053)
OKLCH	oklch(41.75% 0.206 272.7)
XYZ	xyz(11.0713, 6.3266, 46.5272)
Luminance	0.0633 (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

#3031B9 #B9B830

analogous

#3075B9 #3031B9 #7330B9

triadic

#3031B9 #B93031 #31B930

tetradic

#3031B9 #B93075 #B9B830 #30B973

square

#3031B9 #B93075 #B9B830 #30B973

split-complementary

#3031B9 #B97330 #75B930

monochromatic

#171758 #232488 #3031B9 #5455D3 #8485DF

Accessibility & contrast

On white

9.27

#3031B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#3031B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3031B9

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3031B9	#FFFFFF	#000000	##FFFFFF
##3031B9	1.00	9.27	2.27	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBD

Deuteranopia (green-blind)

#0040B7

Tritanopia (blue-blind)

#005872

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3031b9;
/* rgb */ color: rgb(48, 49, 185);
/* oklch */ color: oklch(41.8% 0.206 272.7);

Tailwind

colors: {
  custom: {
    50: '#7e6bcf',
    500: '#3031b9',
    950: '#000000',
  },
}

SCSS

$custom: #3031b9;
$custom-light: #7e6bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3031b9",
  "rgb": {
    "r": 48,
    "g": 49,
    "b": 185
  },
  "hsl": {
    "h": 239.562,
    "s": 58.798,
    "l": 45.686
  },
  "oklch": {
    "l": 0.4175,
    "c": 0.20553,
    "h": 272.7
  },
  "luminance": 0.06328
}

Semantic roles & 50–950 ramp

primary

#3031B9

secondary

#C9C87C

accent

#E146E2

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3031B9

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

Preview Lab → · Contrast checker → · Palette generator →