#30478B#30478B

#30478B is a dark, moderate blue. Relative luminance 0.070; OKLCH L 41.7% C 0.116 H 267.2°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#30478B
RGB	rgb(48, 71, 139)
HSL	hsl(225, 49%, 37%)
HSV	hsv(225, 65%, 55%)
CMYK	cmyk(65.5%, 48.9%, 0%, 45.5%)
CIE-LAB	lab(31.80, 14.26, -40.61)
CIE-LCH	lch(31.80, 43.04, 289.35°)
OKLab	oklab(41.72% -0.0057 -0.1162)
OKLCH	oklch(41.72% 0.116 267.2)
XYZ	xyz(8.1308, 6.9982, 25.3434)
Luminance	0.0700 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30478B #8B7430

analogous

#30758B #30478B #47308B

triadic

#30478B #8B3047 #478B30

tetradic

#30478B #8B3075 #8B7430 #308B47

square

#30478B #8B3075 #8B7430 #308B47

split-complementary

#30478B #8B4730 #758B30

monochromatic

#111930 #20305E #30478B #405EB8 #6A83CC

Accessibility & contrast

On white

8.75

#30478B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#30478B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30478B

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30478B	#FFFFFF	#000000	##FFFFFF
##30478B	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#244F8E

Deuteranopia (green-blind)

#12478A

Tritanopia (blue-blind)

#005762

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #30478b;
/* rgb */ color: rgb(48, 71, 139);
/* oklch */ color: oklch(41.7% 0.116 267.2);

Tailwind

colors: {
  custom: {
    50: '#7279ad',
    500: '#30478b',
    950: '#000000',
  },
}

SCSS

$custom: #30478b;
$custom-light: #7279ad;
$custom-dark: #000000;

JSON

{
  "hex": "#30478b",
  "rgb": {
    "r": 48,
    "g": 71,
    "b": 139
  },
  "hsl": {
    "h": 224.835,
    "s": 48.663,
    "l": 36.667
  },
  "oklch": {
    "l": 0.4172,
    "c": 0.11632,
    "h": 267.2
  },
  "luminance": 0.06999
}

Semantic roles & 50–950 ramp

primary

#30478B

secondary

#B39F64

accent

#B650D8

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #30478B

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

Preview Lab → · Contrast checker → · Palette generator →