#28398D#28398D

#28398D is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.140 H 269.8°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#28398D
RGB	rgb(40, 57, 141)
HSL	hsl(230, 56%, 35%)
HSV	hsv(230, 72%, 55%)
CMYK	cmyk(71.6%, 59.6%, 0%, 44.7%)
CIE-LAB	lab(27.57, 23.20, -48.70)
CIE-LCH	lch(27.57, 53.95, 295.47°)
OKLab	oklab(38.45% -0.0004 -0.1404)
OKLCH	oklch(38.45% 0.14 269.8)
XYZ	xyz(7.1443, 5.2998, 25.8406)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28398D #8D7C28

analogous

#286B8D #28398D #49288D

triadic

#28398D #8D2839 #398D28

tetradic

#28398D #8D286B #8D7C28 #288D49

square

#28398D #8D286B #8D7C28 #288D49

split-complementary

#28398D #8D4928 #6B8D28

monochromatic

#0D122E #1A265D #28398D #364CBD #5E71D1

Accessibility & contrast

On white

10.19

#28398D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#28398D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28398D

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28398D	#FFFFFF	#000000	##FFFFFF
##28398D	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004690

Deuteranopia (green-blind)

#003D8B

Tritanopia (blue-blind)

#004E5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #28398d;
/* rgb */ color: rgb(40, 57, 141);
/* oklch */ color: oklch(38.5% 0.140 269.8);

Tailwind

colors: {
  custom: {
    50: '#706faf',
    500: '#28398d',
    950: '#000000',
  },
}

SCSS

$custom: #28398d;
$custom-light: #706faf;
$custom-dark: #000000;

JSON

{
  "hex": "#28398d",
  "rgb": {
    "r": 40,
    "g": 57,
    "b": 141
  },
  "hsl": {
    "h": 229.901,
    "s": 55.801,
    "l": 35.49
  },
  "oklch": {
    "l": 0.38454,
    "c": 0.14038,
    "h": 269.8
  },
  "luminance": 0.053
}

Semantic roles & 50–950 ramp

primary

#28398D

secondary

#B7A75A

accent

#C649DF

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #28398D

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

Preview Lab → · Contrast checker → · Palette generator →