#28579E#28579E

#28579E is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.3% C 0.126 H 258.6°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#28579E
RGB	rgb(40, 87, 158)
HSL	hsl(216, 60%, 39%)
HSV	hsv(216, 75%, 62%)
CMYK	cmyk(74.7%, 44.9%, 0%, 38%)
CIE-LAB	lab(37.36, 9.54, -43.24)
CIE-LCH	lch(37.36, 44.28, 282.44°)
OKLab	oklab(46.29% -0.0249 -0.1238)
OKLCH	oklch(46.29% 0.126 258.6)
XYZ	xyz(10.4526, 9.7350, 33.6693)
Luminance	0.0974 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28579E #9E6F28

analogous

#28929E #28579E #34289E

triadic

#28579E #9E2857 #579E28

tetradic

#28579E #9E2892 #9E6F28 #289E34

square

#28579E #9E2892 #9E6F28 #289E34

split-complementary

#28579E #9E3428 #929E28

monochromatic

#0F213C #1C3C6D #28579E #3772CC #6895D9

Accessibility & contrast

On white

7.13

#28579E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#28579E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28579E

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28579E	#FFFFFF	#000000	##FFFFFF
##28579E	1.00	7.13	2.95	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#335EA1

Deuteranopia (green-blind)

#1C539D

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #28579e;
/* rgb */ color: rgb(40, 87, 158);
/* oklch */ color: oklch(46.3% 0.126 258.6);

Tailwind

colors: {
  custom: {
    50: '#7285bb',
    500: '#28579e',
    950: '#000000',
  },
}

SCSS

$custom: #28579e;
$custom-light: #7285bb;
$custom-dark: #000000;

JSON

{
  "hex": "#28579e",
  "rgb": {
    "r": 40,
    "g": 87,
    "b": 158
  },
  "hsl": {
    "h": 216.102,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.46286,
    "c": 0.12629,
    "h": 258.6
  },
  "luminance": 0.09736
}

Semantic roles & 50–950 ramp

primary

#28579E

secondary

#BF9A63

accent

#A445E3

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #28579E

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

Preview Lab → · Contrast checker → · Palette generator →