#28458E#28458E

#28458E is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.1% C 0.126 H 265.0°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#28458E
RGB	rgb(40, 69, 142)
HSL	hsl(223, 56%, 36%)
HSV	hsv(223, 72%, 56%)
CMYK	cmyk(71.8%, 51.4%, 0%, 44.3%)
CIE-LAB	lab(31.02, 15.39, -43.73)
CIE-LCH	lch(31.02, 46.36, 289.39°)
OKLab	oklab(41.08% -0.0109 -0.1256)
OKLCH	oklch(41.08% 0.126 265)
XYZ	xyz(7.8840, 6.6595, 26.4559)
Luminance	0.0666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28458E #8E7128

analogous

#28788E #28458E #3E288E

triadic

#28458E #8E2845 #458E28

tetradic

#28458E #8E2878 #8E7128 #288E3E

square

#28458E #8E2878 #8E7128 #288E3E

split-complementary

#28458E #8E3E28 #788E28

monochromatic

#0D172F #1B2E5E #28458E #355CBE #5F7FD2

Accessibility & contrast

On white

9.01

#28458E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#28458E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28458E

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28458E	#FFFFFF	#000000	##FFFFFF
##28458E	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4E91

Deuteranopia (green-blind)

#00458D

Tritanopia (blue-blind)

#005662

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #28458e;
/* rgb */ color: rgb(40, 69, 142);
/* oklch */ color: oklch(41.1% 0.126 265.0);

Tailwind

colors: {
  custom: {
    50: '#6f78b0',
    500: '#28458e',
    950: '#000000',
  },
}

SCSS

$custom: #28458e;
$custom-light: #6f78b0;
$custom-dark: #000000;

JSON

{
  "hex": "#28458e",
  "rgb": {
    "r": 40,
    "g": 69,
    "b": 142
  },
  "hsl": {
    "h": 222.941,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.41077,
    "c": 0.12606,
    "h": 265
  },
  "luminance": 0.0666
}

Semantic roles & 50–950 ramp

primary

#28458E

secondary

#B79D5B

accent

#B448DF

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #28458E

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

Preview Lab → · Contrast checker → · Palette generator →