#28448C#28448C

#28448C is a dark, vivid blue. Relative luminance 0.065; OKLCH L 40.7% C 0.124 H 265.3°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#28448C
RGB	rgb(40, 68, 140)
HSL	hsl(223, 56%, 35%)
HSV	hsv(223, 71%, 55%)
CMYK	cmyk(71.4%, 51.4%, 0%, 45.1%)
CIE-LAB	lab(30.59, 15.30, -43.20)
CIE-LCH	lch(30.59, 45.83, 289.50°)
OKLab	oklab(40.7% -0.0103 -0.124)
OKLCH	oklch(40.7% 0.124 265.3)
XYZ	xyz(7.6742, 6.4780, 25.6518)
Luminance	0.0648 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28448C #8C7028

analogous

#28768C #28448C #3E288C

triadic

#28448C #8C2844 #448C28

tetradic

#28448C #8C2876 #8C7028 #288C3E

square

#28448C #8C2876 #8C7028 #288C3E

split-complementary

#28448C #8C3E28 #768C28

monochromatic

#0D162D #1A2D5C #28448C #365BBC #5E7ED1

Accessibility & contrast

On white

9.15

#28448C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#28448C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28448C

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28448C	#FFFFFF	#000000	##FFFFFF
##28448C	1.00	9.15	2.30	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4D8F

Deuteranopia (green-blind)

#00448B

Tritanopia (blue-blind)

#005561

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #28448c;
/* rgb */ color: rgb(40, 68, 140);
/* oklch */ color: oklch(40.7% 0.124 265.3);

Tailwind

colors: {
  custom: {
    50: '#6f77ae',
    500: '#28448c',
    950: '#000000',
  },
}

SCSS

$custom: #28448c;
$custom-light: #6f77ae;
$custom-dark: #000000;

JSON

{
  "hex": "#28448c",
  "rgb": {
    "r": 40,
    "g": 68,
    "b": 140
  },
  "hsl": {
    "h": 223.2,
    "s": 55.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.40703,
    "c": 0.12444,
    "h": 265.3
  },
  "luminance": 0.06479
}

Semantic roles & 50–950 ramp

primary

#28448C

secondary

#B69C5A

accent

#B549DF

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #28448C

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

Preview Lab → · Contrast checker → · Palette generator →