#28579A#28579A

#28579A is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.0% C 0.121 H 257.7°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#28579A
RGB	rgb(40, 87, 154)
HSL	hsl(215, 59%, 38%)
HSV	hsv(215, 74%, 60%)
CMYK	cmyk(74%, 43.5%, 0%, 39.6%)
CIE-LAB	lab(37.11, 8.00, -41.24)
CIE-LCH	lch(37.11, 42.01, 280.97°)
OKLab	oklab(46.01% -0.0257 -0.1179)
OKLCH	oklch(46.01% 0.121 257.7)
XYZ	xyz(10.1139, 9.5995, 31.8854)
Luminance	0.0960 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28579A #9A6B28

analogous

#28909A #28579A #32289A

triadic

#28579A #9A2857 #579A28

tetradic

#28579A #9A2890 #9A6B28 #289A32

square

#28579A #9A2890 #9A6B28 #289A32

split-complementary

#28579A #9A3228 #909A28

monochromatic

#0F2039 #1B3C69 #28579A #3572CA #6594D7

Accessibility & contrast

On white

7.19

#28579A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#28579A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28579A

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28579A	#FFFFFF	#000000	##FFFFFF
##28579A	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365D9D

Deuteranopia (green-blind)

#225299

Tritanopia (blue-blind)

#006771

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #28579a;
/* rgb */ color: rgb(40, 87, 154);
/* oklch */ color: oklch(46.0% 0.121 257.7);

Tailwind

colors: {
  custom: {
    50: '#7185b8',
    500: '#28579a',
    950: '#000000',
  },
}

SCSS

$custom: #28579a;
$custom-light: #7185b8;
$custom-dark: #000000;

JSON

{
  "hex": "#28579a",
  "rgb": {
    "r": 40,
    "g": 87,
    "b": 154
  },
  "hsl": {
    "h": 215.263,
    "s": 58.763,
    "l": 38.039
  },
  "oklch": {
    "l": 0.46014,
    "c": 0.1207,
    "h": 257.7
  },
  "luminance": 0.09601
}

Semantic roles & 50–950 ramp

primary

#28579A

secondary

#BD9761

accent

#A246E2

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #28579A

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

Preview Lab → · Contrast checker → · Palette generator →