#30288B#30288B

#30288B is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.7% C 0.157 H 278.5°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#30288B
RGB	rgb(48, 40, 139)
HSL	hsl(245, 55%, 35%)
HSV	hsv(245, 71%, 55%)
CMYK	cmyk(65.5%, 71.2%, 0%, 45.5%)
CIE-LAB	lab(23.70, 34.76, -53.76)
CIE-LCH	lch(23.70, 64.02, 302.88°)
OKLab	oklab(35.71% 0.0232 -0.1551)
OKLCH	oklch(35.71% 0.157 278.5)
XYZ	xyz(6.6364, 4.0095, 24.8453)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30288B #838B28

analogous

#28528B #30288B #61288B

triadic

#30288B #8B3028 #288B30

tetradic

#30288B #8B2852 #838B28 #288B61

square

#30288B #8B2852 #838B28 #288B61

split-complementary

#30288B #8B6128 #528B28

monochromatic

#0F0D2C #201A5B #30288B #4036BB #665DD0

Accessibility & contrast

On white

11.65

#30288B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#30288B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30288B

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30288B	#FFFFFF	#000000	##FFFFFF
##30288B	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8E

Deuteranopia (green-blind)

#003489

Tritanopia (blue-blind)

#004356

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #30288b;
/* rgb */ color: rgb(48, 40, 139);
/* oklch */ color: oklch(35.7% 0.157 278.5);

Tailwind

colors: {
  custom: {
    50: '#7463ae',
    500: '#30288b',
    950: '#000000',
  },
}

SCSS

$custom: #30288b;
$custom-light: #7463ae;
$custom-dark: #000000;

JSON

{
  "hex": "#30288b",
  "rgb": {
    "r": 48,
    "g": 40,
    "b": 139
  },
  "hsl": {
    "h": 244.848,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.35706,
    "c": 0.15683,
    "h": 278.5
  },
  "luminance": 0.0401
}

Semantic roles & 50–950 ramp

primary

#30288B

secondary

#AEB659

accent

#DF49D3

background

#F7F5FA

surface

#EEEAF4

border

#C9C6CE

text

#090510

muted

#7B797F

Preview Lab

Preview with #30288B

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

Preview Lab → · Contrast checker → · Palette generator →