#30399E#30399E

#30399E is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.4% C 0.162 H 272.8°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#30399E
RGB	rgb(48, 57, 158)
HSL	hsl(235, 53%, 40%)
HSV	hsv(235, 70%, 62%)
CMYK	cmyk(69.6%, 63.9%, 0%, 38%)
CIE-LAB	lab(29.47, 30.65, -56.00)
CIE-LCH	lch(29.47, 63.84, 298.69°)
OKLab	oklab(40.43% 0.008 -0.1616)
OKLCH	oklch(40.43% 0.162 272.8)
XYZ	xyz(8.8515, 6.0224, 33.0371)
Luminance	0.0602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30399E #9E9530

analogous

#30709E #30399E #5E309E

triadic

#30399E #9E3039 #399E30

tetradic

#30399E #9E3070 #9E9530 #309E5E

square

#30399E #9E3070 #9E9530 #309E5E

split-complementary

#30399E #9E5E30 #709E30

monochromatic

#131740 #22286F #30399E #454FC6 #747CD5

Accessibility & contrast

On white

9.53

#30399E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#30399E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30399E

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30399E	#FFFFFF	#000000	##FFFFFF
##30399E	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA1

Deuteranopia (green-blind)

#00409C

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #30399e;
/* rgb */ color: rgb(48, 57, 158);
/* oklch */ color: oklch(40.4% 0.162 272.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#30399e",
  "rgb": {
    "r": 48,
    "g": 57,
    "b": 158
  },
  "hsl": {
    "h": 235.091,
    "s": 53.398,
    "l": 40.392
  },
  "oklch": {
    "l": 0.40428,
    "c": 0.1618,
    "h": 272.8
  },
  "luminance": 0.06023
}

Semantic roles & 50–950 ramp

primary

#30399E

secondary

#BDB66D

accent

#D14BDD

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #30399E

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

Preview Lab → · Contrast checker → · Palette generator →