#28458D#28458D

#28458D is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.0% C 0.125 H 264.9°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#28458D
RGB	rgb(40, 69, 141)
HSL	hsl(223, 56%, 35%)
HSV	hsv(223, 72%, 55%)
CMYK	cmyk(71.6%, 51.1%, 0%, 44.7%)
CIE-LAB	lab(30.95, 15.00, -43.23)
CIE-LCH	lch(30.95, 45.76, 289.14°)
OKLab	oklab(41% -0.0111 -0.1241)
OKLCH	oklch(41% 0.125 264.9)
XYZ	xyz(7.8092, 6.6297, 26.0622)
Luminance	0.0663 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28458D #8D7028

analogous

#28778D #28458D #3D288D

triadic

#28458D #8D2845 #458D28

tetradic

#28458D #8D2877 #8D7028 #288D3D

square

#28458D #8D2877 #8D7028 #288D3D

split-complementary

#28458D #8D3D28 #778D28

monochromatic

#0D162E #1A2E5D #28458D #365CBD #5E7FD1

Accessibility & contrast

On white

9.03

#28458D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#28458D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28458D

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28458D	#FFFFFF	#000000	##FFFFFF
##28458D	1.00	9.03	2.33	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4E90

Deuteranopia (green-blind)

#00448C

Tritanopia (blue-blind)

#005662

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #28458d;
/* rgb */ color: rgb(40, 69, 141);
/* oklch */ color: oklch(41.0% 0.125 264.9);

Tailwind

colors: {
  custom: {
    50: '#6f78af',
    500: '#28458d',
    950: '#000000',
  },
}

SCSS

$custom: #28458d;
$custom-light: #6f78af;
$custom-dark: #000000;

JSON

{
  "hex": "#28458d",
  "rgb": {
    "r": 40,
    "g": 69,
    "b": 141
  },
  "hsl": {
    "h": 222.772,
    "s": 55.801,
    "l": 35.49
  },
  "oklch": {
    "l": 0.41,
    "c": 0.12459,
    "h": 264.9
  },
  "luminance": 0.0663
}

Semantic roles & 50–950 ramp

primary

#28458D

secondary

#B79C5A

accent

#B449DF

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #28458D

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

Preview Lab → · Contrast checker → · Palette generator →