#3031BA#3031BA

#3031BA is a dark, highly saturated blue. Relative luminance 0.064; OKLCH L 41.9% C 0.207 H 272.7°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#3031BA
RGB	rgb(48, 49, 186)
HSL	hsl(240, 59%, 46%)
HSV	hsv(240, 74%, 73%)
CMYK	cmyk(74.2%, 73.7%, 0%, 27.1%)
CIE-LAB	lab(30.32, 45.29, -71.37)
CIE-LCH	lch(30.32, 84.53, 302.40°)
OKLab	oklab(41.85% 0.0096 -0.2065)
OKLCH	oklch(41.85% 0.207 272.7)
XYZ	xyz(11.1772, 6.3690, 47.0851)
Luminance	0.0637 (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

#3031BA #BAB930

analogous

#3076BA #3031BA #7430BA

triadic

#3031BA #BA3031 #31BA30

tetradic

#3031BA #BA3076 #BAB930 #30BA74

square

#3031BA #BA3076 #BAB930 #30BA74

split-complementary

#3031BA #BA7430 #76BA30

monochromatic

#171759 #232489 #3031BA #5455D3 #8586DF

Accessibility & contrast

On white

9.23

#3031BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#3031BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3031BA

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3031BA	#FFFFFF	#000000	##FFFFFF
##3031BA	1.00	9.23	2.27	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBE

Deuteranopia (green-blind)

#0041B8

Tritanopia (blue-blind)

#005973

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3031ba;
/* rgb */ color: rgb(48, 49, 186);
/* oklch */ color: oklch(41.9% 0.207 272.7);

Tailwind

colors: {
  custom: {
    50: '#7e6bd0',
    500: '#3031ba',
    950: '#000000',
  },
}

SCSS

$custom: #3031ba;
$custom-light: #7e6bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3031ba",
  "rgb": {
    "r": 48,
    "g": 49,
    "b": 186
  },
  "hsl": {
    "h": 239.565,
    "s": 58.974,
    "l": 45.882
  },
  "oklch": {
    "l": 0.41854,
    "c": 0.20675,
    "h": 272.7
  },
  "luminance": 0.0637
}

Semantic roles & 50–950 ramp

primary

#3031BA

secondary

#C9C87D

accent

#E146E2

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3031BA

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

Preview Lab → · Contrast checker → · Palette generator →