#30278B#30278B

#30278B is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.5% C 0.158 H 278.7°. Best body text is #FFFFFF at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#30278B
RGB	rgb(48, 39, 139)
HSL	hsl(245, 56%, 35%)
HSV	hsv(245, 72%, 55%)
CMYK	cmyk(65.5%, 71.9%, 0%, 45.5%)
CIE-LAB	lab(23.48, 35.36, -54.12)
CIE-LCH	lch(23.48, 64.65, 303.16°)
OKLab	oklab(35.55% 0.0239 -0.1562)
OKLCH	oklch(35.55% 0.158 278.7)
XYZ	xyz(6.6031, 3.9430, 24.8342)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30278B #828B27

analogous

#27508B #30278B #62278B

triadic

#30278B #8B3027 #278B30

tetradic

#30278B #8B2750 #828B27 #278B62

square

#30278B #8B2750 #828B27 #278B62

split-complementary

#30278B #8B6227 #508B27

monochromatic

#0F0C2B #1F1A5B #30278B #4134BB #665BD1

Accessibility & contrast

On white

11.74

#30278B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#30278B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30278B

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30278B	#FFFFFF	#000000	##FFFFFF
##30278B	1.00	11.74	1.79	11.74
#FFFFFF	11.74	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8E

Deuteranopia (green-blind)

#003489

Tritanopia (blue-blind)

#004256

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #30278b;
/* rgb */ color: rgb(48, 39, 139);
/* oklch */ color: oklch(35.5% 0.158 278.7);

Tailwind

colors: {
  custom: {
    50: '#7562ae',
    500: '#30278b',
    950: '#000000',
  },
}

SCSS

$custom: #30278b;
$custom-light: #7562ae;
$custom-dark: #000000;

JSON

{
  "hex": "#30278b",
  "rgb": {
    "r": 48,
    "g": 39,
    "b": 139
  },
  "hsl": {
    "h": 245.4,
    "s": 56.18,
    "l": 34.902
  },
  "oklch": {
    "l": 0.35548,
    "c": 0.15799,
    "h": 278.7
  },
  "luminance": 0.03943
}

Semantic roles & 50–950 ramp

primary

#30278B

secondary

#AEB658

accent

#DF48D2

background

#F7F5FA

surface

#EEEAF4

border

#C9C6CE

text

#090510

muted

#7B797F

Preview Lab

Preview with #30278B

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

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