#28338F#28338F

#28338F is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.5% C 0.151 H 271.6°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#28338F
RGB	rgb(40, 51, 143)
HSL	hsl(234, 56%, 36%)
HSV	hsv(234, 72%, 56%)
CMYK	cmyk(72%, 64.3%, 0%, 43.9%)
CIE-LAB	lab(26.16, 28.01, -52.24)
CIE-LCH	lch(26.16, 59.27, 298.20°)
OKLab	oklab(37.46% 0.0043 -0.1508)
OKLCH	oklch(37.46% 0.151 271.6)
XYZ	xyz(7.0151, 4.8012, 26.5383)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28338F #8F8428

analogous

#28668F #28338F #50288F

triadic

#28338F #8F2833 #338F28

tetradic

#28338F #8F2866 #8F8428 #288F50

square

#28338F #8F2866 #8F8428 #288F50

split-complementary

#28338F #8F5028 #668F28

monochromatic

#0D112F #1B225F #28338F #3544BF #5F6BD2

Accessibility & contrast

On white

10.71

#28338F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#28338F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28338F

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28338F	#FFFFFF	#000000	##FFFFFF
##28338F	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004392

Deuteranopia (green-blind)

#00398D

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #28338f;
/* rgb */ color: rgb(40, 51, 143);
/* oklch */ color: oklch(37.5% 0.151 271.6);

Tailwind

colors: {
  custom: {
    50: '#716ab1',
    500: '#28338f',
    950: '#000000',
  },
}

SCSS

$custom: #28338f;
$custom-light: #716ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#28338f",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 143
  },
  "hsl": {
    "h": 233.592,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.37462,
    "c": 0.15089,
    "h": 271.6
  },
  "luminance": 0.04802
}

Semantic roles & 50–950 ramp

primary

#28338F

secondary

#B8AE5B

accent

#CF48E0

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #28338F

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

Preview Lab → · Contrast checker → · Palette generator →