#28447B#28447B

#28447B is a dark, moderate blue. Relative luminance 0.060; OKLCH L 39.5% C 0.099 H 262.4°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#28447B
RGB	rgb(40, 68, 123)
HSL	hsl(220, 51%, 32%)
HSV	hsv(220, 67%, 48%)
CMYK	cmyk(67.5%, 44.7%, 0%, 51.8%)
CIE-LAB	lab(29.45, 8.73, -34.47)
CIE-LCH	lch(29.45, 35.56, 284.22°)
OKLab	oklab(39.47% -0.013 -0.0984)
OKLCH	oklch(39.47% 0.099 262.4)
XYZ	xyz(6.5161, 6.0148, 19.5526)
Luminance	0.0602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28447B #7B5F28

analogous

#286E7B #28447B #36287B

triadic

#28447B #7B2844 #447B28

tetradic

#28447B #7B286E #7B5F28 #287B36

square

#28447B #7B286E #7B5F28 #287B36

split-complementary

#28447B #7B3628 #6E7B28

monochromatic

#0A111F #192A4D #28447B #375EA9 #567CC8

Accessibility & contrast

On white

9.53

#28447B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#28447B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28447B

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28447B	#FFFFFF	#000000	##FFFFFF
##28447B	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A497D

Deuteranopia (green-blind)

#1D427A

Tritanopia (blue-blind)

#005159

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #28447b;
/* rgb */ color: rgb(40, 68, 123);
/* oklch */ color: oklch(39.5% 0.099 262.4);

Tailwind

colors: {
  custom: {
    50: '#6b77a1',
    500: '#28447b',
    950: '#000000',
  },
}

SCSS

$custom: #28447b;
$custom-light: #6b77a1;
$custom-dark: #000000;

JSON

{
  "hex": "#28447b",
  "rgb": {
    "r": 40,
    "g": 68,
    "b": 123
  },
  "hsl": {
    "h": 219.759,
    "s": 50.92,
    "l": 31.961
  },
  "oklch": {
    "l": 0.39465,
    "c": 0.09922,
    "h": 262.4
  },
  "luminance": 0.06015
}

Semantic roles & 50–950 ramp

primary

#28447B

secondary

#AD8E52

accent

#AB4DDA

background

#F6F7FA

surface

#ECEDF3

border

#C7C8CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #28447B

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

Preview Lab → · Contrast checker → · Palette generator →