#30399F#30399F

#30399F is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.5% C 0.163 H 272.8°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#30399F
RGB	rgb(48, 57, 159)
HSL	hsl(235, 54%, 41%)
HSV	hsv(235, 70%, 62%)
CMYK	cmyk(69.8%, 64.2%, 0%, 37.6%)
CIE-LAB	lab(29.56, 31.01, -56.46)
CIE-LCH	lch(29.56, 64.42, 298.78°)
OKLab	oklab(40.52% 0.0079 -0.163)
OKLCH	oklch(40.52% 0.163 272.8)
XYZ	xyz(8.9380, 6.0570, 33.4922)
Luminance	0.0606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30399F #9F9630

analogous

#30709F #30399F #5E309F

triadic

#30399F #9F3039 #399F30

tetradic

#30399F #9F3070 #9F9630 #309F5E

square

#30399F #9F3070 #9F9630 #309F5E

split-complementary

#30399F #9F5E30 #709F30

monochromatic

#141741 #222870 #30399F #4550C7 #747CD5

Accessibility & contrast

On white

9.50

#30399F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#30399F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30399F

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30399F	#FFFFFF	#000000	##FFFFFF
##30399F	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA2

Deuteranopia (green-blind)

#00419D

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #30399f;
/* rgb */ color: rgb(48, 57, 159);
/* oklch */ color: oklch(40.5% 0.163 272.8);

Tailwind

colors: {
  custom: {
    50: '#776fbc',
    500: '#30399f',
    950: '#000000',
  },
}

SCSS

$custom: #30399f;
$custom-light: #776fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#30399f",
  "rgb": {
    "r": 48,
    "g": 57,
    "b": 159
  },
  "hsl": {
    "h": 235.135,
    "s": 53.623,
    "l": 40.588
  },
  "oklch": {
    "l": 0.40519,
    "c": 0.16316,
    "h": 272.8
  },
  "luminance": 0.06058
}

Semantic roles & 50–950 ramp

primary

#30399F

secondary

#BDB76E

accent

#D14BDD

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #30399F

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

Preview Lab → · Contrast checker → · Palette generator →