#28398F#28398F

#28398F is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.6% C 0.143 H 269.8°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#28398F
RGB	rgb(40, 57, 143)
HSL	hsl(230, 56%, 36%)
HSV	hsv(230, 72%, 56%)
CMYK	cmyk(72%, 60.1%, 0%, 43.9%)
CIE-LAB	lab(27.74, 23.96, -49.67)
CIE-LCH	lch(27.74, 55.15, 295.76°)
OKLab	oklab(38.63% -0.0004 -0.1432)
OKLCH	oklch(38.63% 0.143 269.8)
XYZ	xyz(7.2944, 5.3598, 26.6314)
Luminance	0.0536 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28398F #8F7E28

analogous

#286C8F #28398F #4A288F

triadic

#28398F #8F2839 #398F28

tetradic

#28398F #8F286C #8F7E28 #288F4A

square

#28398F #8F286C #8F7E28 #288F4A

split-complementary

#28398F #8F4A28 #6C8F28

monochromatic

#0D132F #1B265F #28398F #354CBF #5F72D2

Accessibility & contrast

On white

10.13

#28398F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#28398F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28398F

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28398F	#FFFFFF	#000000	##FFFFFF
##28398F	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004692

Deuteranopia (green-blind)

#003D8D

Tritanopia (blue-blind)

#004E5E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #28398f;
/* rgb */ color: rgb(40, 57, 143);
/* oklch */ color: oklch(38.6% 0.143 269.8);

Tailwind

colors: {
  custom: {
    50: '#706fb1',
    500: '#28398f',
    950: '#000000',
  },
}

SCSS

$custom: #28398f;
$custom-light: #706fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#28398f",
  "rgb": {
    "r": 40,
    "g": 57,
    "b": 143
  },
  "hsl": {
    "h": 230.097,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.38628,
    "c": 0.14322,
    "h": 269.8
  },
  "luminance": 0.05361
}

Semantic roles & 50–950 ramp

primary

#28398F

secondary

#B8A85B

accent

#C748E0

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #28398F

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

Preview Lab → · Contrast checker → · Palette generator →