#28398E#28398E

#28398E is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.142 H 269.8°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#28398E
RGB	rgb(40, 57, 142)
HSL	hsl(230, 56%, 36%)
HSV	hsv(230, 72%, 56%)
CMYK	cmyk(71.8%, 59.9%, 0%, 44.3%)
CIE-LAB	lab(27.65, 23.58, -49.19)
CIE-LCH	lch(27.65, 54.55, 295.62°)
OKLab	oklab(38.54% -0.0004 -0.1418)
OKLCH	oklch(38.54% 0.142 269.8)
XYZ	xyz(7.2190, 5.3296, 26.2342)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28398E #8E7D28

analogous

#286C8E #28398E #4A288E

triadic

#28398E #8E2839 #398E28

tetradic

#28398E #8E286C #8E7D28 #288E4A

square

#28398E #8E286C #8E7D28 #288E4A

split-complementary

#28398E #8E4A28 #6C8E28

monochromatic

#0D132F #1B265E #28398E #354CBE #5F72D2

Accessibility & contrast

On white

10.16

#28398E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#28398E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28398E

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28398E	#FFFFFF	#000000	##FFFFFF
##28398E	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004691

Deuteranopia (green-blind)

#003D8C

Tritanopia (blue-blind)

#004E5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #28398e;
/* rgb */ color: rgb(40, 57, 142);
/* oklch */ color: oklch(38.5% 0.142 269.8);

Tailwind

colors: {
  custom: {
    50: '#706fb0',
    500: '#28398e',
    950: '#000000',
  },
}

SCSS

$custom: #28398e;
$custom-light: #706fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#28398e",
  "rgb": {
    "r": 40,
    "g": 57,
    "b": 142
  },
  "hsl": {
    "h": 230,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.38541,
    "c": 0.1418,
    "h": 269.8
  },
  "luminance": 0.0533
}

Semantic roles & 50–950 ramp

primary

#28398E

secondary

#B7A85B

accent

#C648DF

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #28398E

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

Preview Lab → · Contrast checker → · Palette generator →