#28339D#28339D

#28339D is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.8% C 0.170 H 271.2°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#28339D
RGB	rgb(40, 51, 157)
HSL	hsl(234, 59%, 39%)
HSV	hsv(234, 75%, 62%)
CMYK	cmyk(74.5%, 67.5%, 0%, 38.4%)
CIE-LAB	lab(27.44, 33.17, -58.73)
CIE-LCH	lch(27.44, 67.45, 299.46°)
OKLab	oklab(38.79% 0.0034 -0.1698)
OKLCH	oklch(38.79% 0.17 271.2)
XYZ	xyz(8.1426, 5.2522, 32.4764)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28339D #9D9228

analogous

#286D9D #28339D #57289D

triadic

#28339D #9D2833 #339D28

tetradic

#28339D #9D286D #9D9228 #289D57

square

#28339D #9D286D #9D9228 #289D57

split-complementary

#28339D #9D5728 #6D9D28

monochromatic

#0F133B #1C236C #28339D #3644CC #6772D8

Accessibility & contrast

On white

10.24

#28339D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#28339D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28339D

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28339D	#FFFFFF	#000000	##FFFFFF
##28339D	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A0

Deuteranopia (green-blind)

#003B9B

Tritanopia (blue-blind)

#004F63

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #28339d;
/* rgb */ color: rgb(40, 51, 157);
/* oklch */ color: oklch(38.8% 0.170 271.2);

Tailwind

colors: {
  custom: {
    50: '#746bbb',
    500: '#28339d',
    950: '#000000',
  },
}

SCSS

$custom: #28339d;
$custom-light: #746bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#28339d",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 157
  },
  "hsl": {
    "h": 234.359,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.38793,
    "c": 0.16986,
    "h": 271.2
  },
  "luminance": 0.05253
}

Semantic roles & 50–950 ramp

primary

#28339D

secondary

#BEB662

accent

#D445E3

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #28339D

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

Preview Lab → · Contrast checker → · Palette generator →