#30289C#30289C

#30289C is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.4% C 0.179 H 276.4°. Best body text is #FFFFFF at 11.00:1 contrast (WCAG AA passes).

Color values

HEX	#30289C
RGB	rgb(48, 40, 156)
HSL	hsl(244, 59%, 38%)
HSV	hsv(244, 74%, 61%)
CMYK	cmyk(69.2%, 74.4%, 0%, 38.8%)
CIE-LAB	lab(25.40, 40.47, -61.46)
CIE-LCH	lch(25.40, 73.59, 303.36°)
OKLab	oklab(37.43% 0.02 -0.1776)
OKLCH	oklch(37.43% 0.179 276.4)
XYZ	xyz(7.9765, 4.5455, 31.9031)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30289C #949C28

analogous

#285A9C #30289C #6A289C

triadic

#30289C #9C3028 #289C30

tetradic

#30289C #9C285A #949C28 #289C6A

square

#30289C #9C285A #949C28 #289C6A

split-complementary

#30289C #9C6A28 #5A9C28

monochromatic

#120F3B #211C6B #30289C #4036CB #6E67D8

Accessibility & contrast

On white

11.00

#30289C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#30289C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30289C

11.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30289C	#FFFFFF	#000000	##FFFFFF
##30289C	1.00	11.00	1.91	11.00
#FFFFFF	11.00	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00419F

Deuteranopia (green-blind)

#00379A

Tritanopia (blue-blind)

#004960

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #30289c;
/* rgb */ color: rgb(48, 40, 156);
/* oklch */ color: oklch(37.4% 0.179 276.4);

Tailwind

colors: {
  custom: {
    50: '#7864ba',
    500: '#30289c',
    950: '#000000',
  },
}

SCSS

$custom: #30289c;
$custom-light: #7864ba;
$custom-dark: #000000;

JSON

{
  "hex": "#30289c",
  "rgb": {
    "r": 48,
    "g": 40,
    "b": 156
  },
  "hsl": {
    "h": 244.138,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.37429,
    "c": 0.17872,
    "h": 276.4
  },
  "luminance": 0.04546
}

Semantic roles & 50–950 ramp

primary

#30289C

secondary

#B8BE62

accent

#E245D8

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #30289C

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

Preview Lab → · Contrast checker → · Palette generator →