#28448F#28448F

#28448F is a dark, vivid blue. Relative luminance 0.066; OKLCH L 40.9% C 0.129 H 265.6°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#28448F
RGB	rgb(40, 68, 143)
HSL	hsl(224, 56%, 36%)
HSV	hsv(224, 72%, 56%)
CMYK	cmyk(72%, 52.4%, 0%, 43.9%)
CIE-LAB	lab(30.80, 16.46, -44.70)
CIE-LCH	lch(30.80, 47.63, 290.22°)
OKLab	oklab(40.93% -0.0099 -0.1284)
OKLCH	oklch(40.93% 0.129 265.6)
XYZ	xyz(7.8984, 6.5677, 26.8327)
Luminance	0.0657 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28448F #8F7328

analogous

#28778F #28448F #3F288F

triadic

#28448F #8F2844 #448F28

tetradic

#28448F #8F2877 #8F7328 #288F3F

square

#28448F #8F2877 #8F7328 #288F3F

split-complementary

#28448F #8F3F28 #778F28

monochromatic

#0D172F #1B2D5F #28448F #355BBF #5F7ED2

Accessibility & contrast

On white

9.08

#28448F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#28448F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28448F

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28448F	#FFFFFF	#000000	##FFFFFF
##28448F	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164D92

Deuteranopia (green-blind)

#00448D

Tritanopia (blue-blind)

#005663

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #28448f;
/* rgb */ color: rgb(40, 68, 143);
/* oklch */ color: oklch(40.9% 0.129 265.6);

Tailwind

colors: {
  custom: {
    50: '#7077b0',
    500: '#28448f',
    950: '#000000',
  },
}

SCSS

$custom: #28448f;
$custom-light: #7077b0;
$custom-dark: #000000;

JSON

{
  "hex": "#28448f",
  "rgb": {
    "r": 40,
    "g": 68,
    "b": 143
  },
  "hsl": {
    "h": 223.689,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.40934,
    "c": 0.12881,
    "h": 265.6
  },
  "luminance": 0.06569
}

Semantic roles & 50–950 ramp

primary

#28448F

secondary

#B89F5B

accent

#B648E0

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #28448F

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

Preview Lab → · Contrast checker → · Palette generator →