#30398B#30398B

#30398B is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.8% C 0.135 H 273.6°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#30398B
RGB	rgb(48, 57, 139)
HSL	hsl(234, 49%, 37%)
HSV	hsv(234, 65%, 55%)
CMYK	cmyk(65.5%, 59%, 0%, 45.5%)
CIE-LAB	lab(27.89, 23.73, -46.92)
CIE-LCH	lch(27.89, 52.58, 296.83°)
OKLab	oklab(38.77% 0.0084 -0.1349)
OKLCH	oklch(38.77% 0.135 273.6)
XYZ	xyz(7.3407, 5.4181, 25.0800)
Luminance	0.0542 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30398B #8B8230

analogous

#30678B #30398B #55308B

triadic

#30398B #8B3039 #398B30

tetradic

#30398B #8B3067 #8B8230 #308B55

square

#30398B #8B3067 #8B8230 #308B55

split-complementary

#30398B #8B5530 #678B30

monochromatic

#111430 #20265E #30398B #404CB8 #6A74CC

Accessibility & contrast

On white

10.08

#30398B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#30398B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30398B

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30398B	#FFFFFF	#000000	##FFFFFF
##30398B	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468E

Deuteranopia (green-blind)

#003E89

Tritanopia (blue-blind)

#004D5C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #30398b;
/* rgb */ color: rgb(48, 57, 139);
/* oklch */ color: oklch(38.8% 0.135 273.6);

Tailwind

colors: {
  custom: {
    50: '#736fae',
    500: '#30398b',
    950: '#000000',
  },
}

SCSS

$custom: #30398b;
$custom-light: #736fae;
$custom-dark: #000000;

JSON

{
  "hex": "#30398b",
  "rgb": {
    "r": 48,
    "g": 57,
    "b": 139
  },
  "hsl": {
    "h": 234.066,
    "s": 48.663,
    "l": 36.667
  },
  "oklch": {
    "l": 0.38772,
    "c": 0.1352,
    "h": 273.6
  },
  "luminance": 0.05419
}

Semantic roles & 50–950 ramp

primary

#30398B

secondary

#B3AB64

accent

#CB50D8

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #30398B

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

Preview Lab → · Contrast checker → · Palette generator →