#28488E#28488E

#28488E is a dark, vivid blue. Relative luminance 0.070; OKLCH L 41.7% C 0.122 H 263.5°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#28488E
RGB	rgb(40, 72, 142)
HSL	hsl(221, 56%, 36%)
HSV	hsv(221, 72%, 56%)
CMYK	cmyk(71.8%, 49.3%, 0%, 44.3%)
CIE-LAB	lab(31.89, 13.35, -42.33)
CIE-LCH	lch(31.89, 44.38, 287.51°)
OKLab	oklab(41.74% -0.0138 -0.1214)
OKLCH	oklch(41.74% 0.122 263.5)
XYZ	xyz(8.0732, 7.0380, 26.5189)
Luminance	0.0704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28488E #8E6E28

analogous

#287B8E #28488E #3B288E

triadic

#28488E #8E2848 #488E28

tetradic

#28488E #8E287B #8E6E28 #288E3B

square

#28488E #8E287B #8E6E28 #288E3B

split-complementary

#28488E #8E3B28 #7B8E28

monochromatic

#0D182F #1B305E #28488E #3560BE #5F83D2

Accessibility & contrast

On white

8.72

#28488E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#28488E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28488E

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28488E	#FFFFFF	#000000	##FFFFFF
##28488E	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225091

Deuteranopia (green-blind)

#06478D

Tritanopia (blue-blind)

#005864

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #28488e;
/* rgb */ color: rgb(40, 72, 142);
/* oklch */ color: oklch(41.7% 0.122 263.5);

Tailwind

colors: {
  custom: {
    50: '#6f7aaf',
    500: '#28488e',
    950: '#000000',
  },
}

SCSS

$custom: #28488e;
$custom-light: #6f7aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#28488e",
  "rgb": {
    "r": 40,
    "g": 72,
    "b": 142
  },
  "hsl": {
    "h": 221.176,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.41744,
    "c": 0.12216,
    "h": 263.5
  },
  "luminance": 0.07039
}

Semantic roles & 50–950 ramp

primary

#28488E

secondary

#B79A5B

accent

#B048DF

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #28488E

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

Preview Lab → · Contrast checker → · Palette generator →