#28439D#28439D

#28439D is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.9% C 0.150 H 267.0°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#28439D
RGB	rgb(40, 67, 157)
HSL	hsl(226, 59%, 39%)
HSV	hsv(226, 75%, 62%)
CMYK	cmyk(74.5%, 57.3%, 0%, 38.4%)
CIE-LAB	lab(31.58, 22.54, -51.98)
CIE-LCH	lch(31.58, 56.66, 293.45°)
OKLab	oklab(41.85% -0.0079 -0.1499)
OKLCH	oklch(41.85% 0.15 267)
XYZ	xyz(8.9659, 6.8988, 32.7508)
Luminance	0.0690 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28439D #9D8228

analogous

#287D9D #28439D #47289D

triadic

#28439D #9D2843 #439D28

tetradic

#28439D #9D287D #9D8228 #289D47

square

#28439D #9D287D #9D8228 #289D47

split-complementary

#28439D #9D4728 #7D9D28

monochromatic

#0F193B #1C2E6C #28439D #3659CC #6781D8

Accessibility & contrast

On white

8.82

#28439D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#28439D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28439D

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28439D	#FFFFFF	#000000	##FFFFFF
##28439D	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A0

Deuteranopia (green-blind)

#00459B

Tritanopia (blue-blind)

#005969

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #28439d;
/* rgb */ color: rgb(40, 67, 157);
/* oklch */ color: oklch(41.9% 0.150 267.0);

Tailwind

colors: {
  custom: {
    50: '#7376bb',
    500: '#28439d',
    950: '#000000',
  },
}

SCSS

$custom: #28439d;
$custom-light: #7376bb;
$custom-dark: #000000;

JSON

{
  "hex": "#28439d",
  "rgb": {
    "r": 40,
    "g": 67,
    "b": 157
  },
  "hsl": {
    "h": 226.154,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.41852,
    "c": 0.15007,
    "h": 267
  },
  "luminance": 0.069
}

Semantic roles & 50–950 ramp

primary

#28439D

secondary

#BEA962

accent

#BE45E3

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #28439D

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

Preview Lab → · Contrast checker → · Palette generator →