#30399D#30399D

#30399D is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.3% C 0.160 H 272.9°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#30399D
RGB	rgb(48, 57, 157)
HSL	hsl(235, 53%, 40%)
HSV	hsv(235, 69%, 62%)
CMYK	cmyk(69.4%, 63.7%, 0%, 38.4%)
CIE-LAB	lab(29.38, 30.29, -55.53)
CIE-LCH	lch(29.38, 63.26, 298.61°)
OKLab	oklab(40.34% 0.008 -0.1602)
OKLCH	oklch(40.34% 0.16 272.9)
XYZ	xyz(8.7658, 5.9881, 32.5856)
Luminance	0.0599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30399D #9D9430

analogous

#306F9D #30399D #5E309D

triadic

#30399D #9D3039 #399D30

tetradic

#30399D #9D306F #9D9430 #309D5E

square

#30399D #9D306F #9D9430 #309D5E

split-complementary

#30399D #9D5E30 #6F9D30

monochromatic

#13173F #22286E #30399D #444FC6 #737BD4

Accessibility & contrast

On white

9.56

#30399D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#30399D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30399D

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30399D	#FFFFFF	#000000	##FFFFFF
##30399D	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA0

Deuteranopia (green-blind)

#00409B

Tritanopia (blue-blind)

#005365

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #30399d;
/* rgb */ color: rgb(48, 57, 157);
/* oklch */ color: oklch(40.3% 0.160 272.9);

Tailwind

colors: {
  custom: {
    50: '#776fbb',
    500: '#30399d',
    950: '#000000',
  },
}

SCSS

$custom: #30399d;
$custom-light: #776fbb;
$custom-dark: #000000;

JSON

{
  "hex": "#30399d",
  "rgb": {
    "r": 48,
    "g": 57,
    "b": 157
  },
  "hsl": {
    "h": 235.046,
    "s": 53.171,
    "l": 40.196
  },
  "oklch": {
    "l": 0.40338,
    "c": 0.16044,
    "h": 272.9
  },
  "luminance": 0.05989
}

Semantic roles & 50–950 ramp

primary

#30399D

secondary

#BCB66D

accent

#D14BDD

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #30399D

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

Preview Lab → · Contrast checker → · Palette generator →