#28369D#28369D

#28369D is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.3% C 0.166 H 270.5°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#28369D
RGB	rgb(40, 54, 157)
HSL	hsl(233, 59%, 39%)
HSV	hsv(233, 75%, 62%)
CMYK	cmyk(74.5%, 65.6%, 0%, 38.4%)
CIE-LAB	lab(28.18, 31.22, -57.53)
CIE-LCH	lch(28.18, 65.45, 298.49°)
OKLab	oklab(39.33% 0.0015 -0.1663)
OKLCH	oklch(39.33% 0.166 270.5)
XYZ	xyz(8.2780, 5.5229, 32.5215)
Luminance	0.0552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28369D #9D8F28

analogous

#28709D #28369D #54289D

triadic

#28369D #9D2836 #369D28

tetradic

#28369D #9D2870 #9D8F28 #289D54

square

#28369D #9D2870 #9D8F28 #289D54

split-complementary

#28369D #9D5428 #709D28

monochromatic

#0F143B #1C256C #28369D #3648CC #6775D8

Accessibility & contrast

On white

9.98

#28369D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#28369D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28369D

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28369D	#FFFFFF	#000000	##FFFFFF
##28369D	1.00	9.98	2.10	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A0

Deuteranopia (green-blind)

#003D9B

Tritanopia (blue-blind)

#005164

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #28369d;
/* rgb */ color: rgb(40, 54, 157);
/* oklch */ color: oklch(39.3% 0.166 270.5);

Tailwind

colors: {
  custom: {
    50: '#746dbb',
    500: '#28369d',
    950: '#000000',
  },
}

SCSS

$custom: #28369d;
$custom-light: #746dbb;
$custom-dark: #000000;

JSON

{
  "hex": "#28369d",
  "rgb": {
    "r": 40,
    "g": 54,
    "b": 157
  },
  "hsl": {
    "h": 232.821,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.39329,
    "c": 0.16631,
    "h": 270.5
  },
  "luminance": 0.05524
}

Semantic roles & 50–950 ramp

primary

#28369D

secondary

#BEB362

accent

#D045E3

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #28369D

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

Preview Lab → · Contrast checker → · Palette generator →