#30319B#30319B

#30319B is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.7% C 0.167 H 274.9°. Best body text is #FFFFFF at 10.30:1 contrast (WCAG AA passes).

Color values

HEX	#30319B
RGB	rgb(48, 49, 155)
HSL	hsl(239, 53%, 40%)
HSV	hsv(239, 69%, 61%)
CMYK	cmyk(69%, 68.4%, 0%, 39.2%)
CIE-LAB	lab(27.27, 34.70, -57.77)
CIE-LCH	lch(27.27, 67.39, 300.99°)
OKLab	oklab(38.74% 0.0142 -0.1668)
OKLCH	oklch(38.74% 0.167 274.9)
XYZ	xyz(8.2317, 5.1908, 31.5721)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30319B #9B9A30

analogous

#30679B #30319B #64309B

triadic

#30319B #9B3031 #319B30

tetradic

#30319B #9B3067 #9B9A30 #309B64

square

#30319B #9B3067 #9B9A30 #309B64

split-complementary

#30319B #9B6430 #679B30

monochromatic

#13133E #22226C #30319B #4345C5 #7273D3

Accessibility & contrast

On white

10.30

#30319B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#30319B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30319B

10.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30319B	#FFFFFF	#000000	##FFFFFF
##30319B	1.00	10.30	2.04	10.30
#FFFFFF	10.30	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459E

Deuteranopia (green-blind)

#003C99

Tritanopia (blue-blind)

#004D62

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #30319b;
/* rgb */ color: rgb(48, 49, 155);
/* oklch */ color: oklch(38.7% 0.167 274.9);

Tailwind

colors: {
  custom: {
    50: '#776ab9',
    500: '#30319b',
    950: '#000000',
  },
}

SCSS

$custom: #30319b;
$custom-light: #776ab9;
$custom-dark: #000000;

JSON

{
  "hex": "#30319b",
  "rgb": {
    "r": 48,
    "g": 49,
    "b": 155
  },
  "hsl": {
    "h": 239.439,
    "s": 52.709,
    "l": 39.804
  },
  "oklch": {
    "l": 0.38743,
    "c": 0.16744,
    "h": 274.9
  },
  "luminance": 0.05192
}

Semantic roles & 50–950 ramp

primary

#30319B

secondary

#BBBA6C

accent

#DB4CDC

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #30319B

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

Preview Lab → · Contrast checker → · Palette generator →