#30439B#30439B

#30439B is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.1% C 0.145 H 269.9°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#30439B
RGB	rgb(48, 67, 155)
HSL	hsl(229, 53%, 40%)
HSV	hsv(229, 69%, 61%)
CMYK	cmyk(69%, 56.8%, 0%, 39.2%)
CIE-LAB	lab(31.83, 22.93, -50.34)
CIE-LCH	lch(31.83, 55.32, 294.49°)
OKLab	oklab(42.1% -0.0003 -0.1449)
OKLCH	oklch(42.1% 0.145 269.9)
XYZ	xyz(9.1405, 7.0084, 31.8750)
Luminance	0.0701 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30439B #9B8830

analogous

#30789B #30439B #53309B

triadic

#30439B #9B3043 #439B30

tetradic

#30439B #9B3078 #9B8830 #309B53

square

#30439B #9B3078 #9B8830 #309B53

split-complementary

#30439B #9B5330 #789B30

monochromatic

#131B3E #222F6C #30439B #435AC5 #7283D3

Accessibility & contrast

On white

8.74

#30439B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#30439B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30439B

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30439B	#FFFFFF	#000000	##FFFFFF
##30439B	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00509E

Deuteranopia (green-blind)

#004699

Tritanopia (blue-blind)

#005868

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #30439b;
/* rgb */ color: rgb(48, 67, 155);
/* oklch */ color: oklch(42.1% 0.145 269.9);

Tailwind

colors: {
  custom: {
    50: '#7676b9',
    500: '#30439b',
    950: '#000000',
  },
}

SCSS

$custom: #30439b;
$custom-light: #7676b9;
$custom-dark: #000000;

JSON

{
  "hex": "#30439b",
  "rgb": {
    "r": 48,
    "g": 67,
    "b": 155
  },
  "hsl": {
    "h": 229.346,
    "s": 52.709,
    "l": 39.804
  },
  "oklch": {
    "l": 0.42101,
    "c": 0.14487,
    "h": 269.9
  },
  "luminance": 0.07009
}

Semantic roles & 50–950 ramp

primary

#30439B

secondary

#BBAD6C

accent

#C24CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #30439B

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

Preview Lab → · Contrast checker → · Palette generator →