#30399C#30399C

#30399C is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.159 H 272.9°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#30399C
RGB	rgb(48, 57, 156)
HSL	hsl(235, 53%, 40%)
HSV	hsv(235, 69%, 61%)
CMYK	cmyk(69.2%, 63.5%, 0%, 38.8%)
CIE-LAB	lab(29.30, 29.93, -55.07)
CIE-LCH	lch(29.30, 62.67, 298.52°)
OKLab	oklab(40.25% 0.0081 -0.1589)
OKLCH	oklch(40.25% 0.159 272.9)
XYZ	xyz(8.6808, 5.9541, 32.1378)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30399C #9C9330

analogous

#306F9C #30399C #5D309C

triadic

#30399C #9C3039 #399C30

tetradic

#30399C #9C306F #9C9330 #309C5D

square

#30399C #9C306F #9C9330 #309C5D

split-complementary

#30399C #9C5D30 #6F9C30

monochromatic

#13173E #22286D #30399C #444FC5 #737BD4

Accessibility & contrast

On white

9.58

#30399C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#30399C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30399C

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30399C	#FFFFFF	#000000	##FFFFFF
##30399C	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9F

Deuteranopia (green-blind)

#00409A

Tritanopia (blue-blind)

#005265

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #30399c;
/* rgb */ color: rgb(48, 57, 156);
/* oklch */ color: oklch(40.2% 0.159 272.9);

Tailwind

colors: {
  custom: {
    50: '#776fba',
    500: '#30399c',
    950: '#000000',
  },
}

SCSS

$custom: #30399c;
$custom-light: #776fba;
$custom-dark: #000000;

JSON

{
  "hex": "#30399c",
  "rgb": {
    "r": 48,
    "g": 57,
    "b": 156
  },
  "hsl": {
    "h": 235,
    "s": 52.941,
    "l": 40
  },
  "oklch": {
    "l": 0.40248,
    "c": 0.15908,
    "h": 272.9
  },
  "luminance": 0.05955
}

Semantic roles & 50–950 ramp

primary

#30399C

secondary

#BCB56C

accent

#D04BDC

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #30399C

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

Preview Lab → · Contrast checker → · Palette generator →