#28559D#28559D

#28559D is a mid, vivid blue. Relative luminance 0.094; OKLCH L 45.8% C 0.127 H 259.5°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#28559D
RGB	rgb(40, 85, 157)
HSL	hsl(217, 59%, 39%)
HSV	hsv(217, 75%, 62%)
CMYK	cmyk(74.5%, 45.9%, 0%, 38.4%)
CIE-LAB	lab(36.71, 10.47, -43.69)
CIE-LCH	lch(36.71, 44.93, 283.48°)
OKLab	oklab(45.76% -0.0233 -0.1252)
OKLCH	oklch(45.76% 0.127 259.5)
XYZ	xyz(10.2072, 9.3813, 33.1646)
Luminance	0.0938 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28559D #9D7028

analogous

#288F9D #28559D #35289D

triadic

#28559D #9D2855 #559D28

tetradic

#28559D #9D288F #9D7028 #289D35

square

#28559D #9D288F #9D7028 #289D35

split-complementary

#28559D #9D3528 #8F9D28

monochromatic

#0F203B #1C3B6C #28559D #3670CC #6793D8

Accessibility & contrast

On white

7.30

#28559D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#28559D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28559D

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28559D	#FFFFFF	#000000	##FFFFFF
##28559D	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#305CA0

Deuteranopia (green-blind)

#18519C

Tritanopia (blue-blind)

#006671

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #28559d;
/* rgb */ color: rgb(40, 85, 157);
/* oklch */ color: oklch(45.8% 0.127 259.5);

Tailwind

colors: {
  custom: {
    50: '#7284ba',
    500: '#28559d',
    950: '#000000',
  },
}

SCSS

$custom: #28559d;
$custom-light: #7284ba;
$custom-dark: #000000;

JSON

{
  "hex": "#28559d",
  "rgb": {
    "r": 40,
    "g": 85,
    "b": 157
  },
  "hsl": {
    "h": 216.923,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.45761,
    "c": 0.12731,
    "h": 259.5
  },
  "luminance": 0.09382
}

Semantic roles & 50–950 ramp

primary

#28559D

secondary

#BE9B62

accent

#A645E3

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #28559D

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

Preview Lab → · Contrast checker → · Palette generator →