#28489E#28489E

#28489E is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.0% C 0.145 H 265.3°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#28489E
RGB	rgb(40, 72, 158)
HSL	hsl(224, 60%, 39%)
HSV	hsv(224, 75%, 62%)
CMYK	cmyk(74.7%, 54.4%, 0%, 38%)
CIE-LAB	lab(33.04, 19.55, -50.21)
CIE-LCH	lch(33.04, 53.89, 291.28°)
OKLab	oklab(42.98% -0.0119 -0.1446)
OKLCH	oklch(42.98% 0.145 265.3)
XYZ	xyz(9.3618, 7.5535, 33.3057)
Luminance	0.0755 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28489E #9E7E28

analogous

#28839E #28489E #43289E

triadic

#28489E #9E2848 #489E28

tetradic

#28489E #9E2883 #9E7E28 #289E43

square

#28489E #9E2883 #9E7E28 #289E43

split-complementary

#28489E #9E4328 #839E28

monochromatic

#0F1B3C #1C326D #28489E #375FCC #6886D9

Accessibility & contrast

On white

8.36

#28489E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#28489E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28489E

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28489E	#FFFFFF	#000000	##FFFFFF
##28489E	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0553A1

Deuteranopia (green-blind)

#00499C

Tritanopia (blue-blind)

#005D6C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #28489e;
/* rgb */ color: rgb(40, 72, 158);
/* oklch */ color: oklch(43.0% 0.145 265.3);

Tailwind

colors: {
  custom: {
    50: '#737abb',
    500: '#28489e',
    950: '#000000',
  },
}

SCSS

$custom: #28489e;
$custom-light: #737abb;
$custom-dark: #000000;

JSON

{
  "hex": "#28489e",
  "rgb": {
    "r": 40,
    "g": 72,
    "b": 158
  },
  "hsl": {
    "h": 223.729,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.42976,
    "c": 0.14508,
    "h": 265.3
  },
  "luminance": 0.07554
}

Semantic roles & 50–950 ramp

primary

#28489E

secondary

#BFA663

accent

#B845E3

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #28489E

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

Preview Lab → · Contrast checker → · Palette generator →