#28398C#28398C

#28398C is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.4% C 0.139 H 269.8°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#28398C
RGB	rgb(40, 57, 140)
HSL	hsl(230, 56%, 35%)
HSV	hsv(230, 71%, 55%)
CMYK	cmyk(71.4%, 59.3%, 0%, 45.1%)
CIE-LAB	lab(27.49, 22.82, -48.22)
CIE-LCH	lch(27.49, 53.34, 295.33°)
OKLab	oklab(38.37% -0.0004 -0.1389)
OKLCH	oklch(38.37% 0.139 269.8)
XYZ	xyz(7.0702, 5.2701, 25.4505)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28398C #8C7B28

analogous

#286B8C #28398C #49288C

triadic

#28398C #8C2839 #398C28

tetradic

#28398C #8C286B #8C7B28 #288C49

square

#28398C #8C286B #8C7B28 #288C49

split-complementary

#28398C #8C4928 #6B8C28

monochromatic

#0D122D #1A265C #28398C #364CBC #5E71D1

Accessibility & contrast

On white

10.22

#28398C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#28398C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28398C

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28398C	#FFFFFF	#000000	##FFFFFF
##28398C	1.00	10.22	2.05	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468F

Deuteranopia (green-blind)

#003C8A

Tritanopia (blue-blind)

#004D5C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #28398c;
/* rgb */ color: rgb(40, 57, 140);
/* oklch */ color: oklch(38.4% 0.139 269.8);

Tailwind

colors: {
  custom: {
    50: '#706fae',
    500: '#28398c',
    950: '#000000',
  },
}

SCSS

$custom: #28398c;
$custom-light: #706fae;
$custom-dark: #000000;

JSON

{
  "hex": "#28398c",
  "rgb": {
    "r": 40,
    "g": 57,
    "b": 140
  },
  "hsl": {
    "h": 229.8,
    "s": 55.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.38368,
    "c": 0.13895,
    "h": 269.8
  },
  "luminance": 0.05271
}

Semantic roles & 50–950 ramp

primary

#28398C

secondary

#B6A65A

accent

#C549DF

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #28398C

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

Preview Lab → · Contrast checker → · Palette generator →