#30428B#30428B

#30428B is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.6% C 0.123 H 269.8°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#30428B
RGB	rgb(48, 66, 139)
HSL	hsl(228, 49%, 37%)
HSV	hsv(228, 65%, 55%)
CMYK	cmyk(65.5%, 52.5%, 0%, 45.5%)
CIE-LAB	lab(30.37, 17.64, -42.91)
CIE-LCH	lch(30.37, 46.40, 292.35°)
OKLab	oklab(40.63% -0.0005 -0.123)
OKLCH	oklch(40.63% 0.123 269.8)
XYZ	xyz(7.8258, 6.3882, 25.2417)
Luminance	0.0639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30428B #8B7930

analogous

#30708B #30428B #4C308B

triadic

#30428B #8B3042 #428B30

tetradic

#30428B #8B3070 #8B7930 #308B4C

square

#30428B #8B3070 #8B7930 #308B4C

split-complementary

#30428B #8B4C30 #708B30

monochromatic

#111730 #202C5E #30428B #4058B8 #6A7DCC

Accessibility & contrast

On white

9.22

#30428B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#30428B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30428B

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30428B	#FFFFFF	#000000	##FFFFFF
##30428B	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184C8E

Deuteranopia (green-blind)

#004489

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #30428b;
/* rgb */ color: rgb(48, 66, 139);
/* oklch */ color: oklch(40.6% 0.123 269.8);

Tailwind

colors: {
  custom: {
    50: '#7276ad',
    500: '#30428b',
    950: '#000000',
  },
}

SCSS

$custom: #30428b;
$custom-light: #7276ad;
$custom-dark: #000000;

JSON

{
  "hex": "#30428b",
  "rgb": {
    "r": 48,
    "g": 66,
    "b": 139
  },
  "hsl": {
    "h": 228.132,
    "s": 48.663,
    "l": 36.667
  },
  "oklch": {
    "l": 0.40632,
    "c": 0.12303,
    "h": 269.8
  },
  "luminance": 0.06389
}

Semantic roles & 50–950 ramp

primary

#30428B

secondary

#B3A364

accent

#BD50D8

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #30428B

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

Preview Lab → · Contrast checker → · Palette generator →