#28447F#28447F

#28447F is a dark, moderate blue. Relative luminance 0.061; OKLCH L 39.7% C 0.105 H 263.3°. Best body text is #FFFFFF at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#28447F
RGB	rgb(40, 68, 127)
HSL	hsl(221, 52%, 33%)
HSV	hsv(221, 69%, 50%)
CMYK	cmyk(68.5%, 46.5%, 0%, 50.2%)
CIE-LAB	lab(29.71, 10.27, -36.56)
CIE-LCH	lch(29.71, 37.98, 285.69°)
OKLab	oklab(39.75% -0.0123 -0.1045)
OKLCH	oklch(39.75% 0.105 263.3)
XYZ	xyz(6.7716, 6.1170, 20.8984)
Luminance	0.0612 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28447F #7F6328

analogous

#286F7F #28447F #38287F

triadic

#28447F #7F2844 #447F28

tetradic

#28447F #7F286F #7F6328 #287F38

square

#28447F #7F286F #7F6328 #287F38

split-complementary

#28447F #7F3828 #6F7F28

monochromatic

#0B1222 #192B50 #28447F #375DAE #577CCA

Accessibility & contrast

On white

9.44

#28447F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#28447F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28447F

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28447F	#FFFFFF	#000000	##FFFFFF
##28447F	1.00	9.44	2.22	9.44
#FFFFFF	9.44	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274A81

Deuteranopia (green-blind)

#18427E

Tritanopia (blue-blind)

#00525B

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #28447f;
/* rgb */ color: rgb(40, 68, 127);
/* oklch */ color: oklch(39.7% 0.105 263.3);

Tailwind

colors: {
  custom: {
    50: '#6c77a4',
    500: '#28447f',
    950: '#000000',
  },
}

SCSS

$custom: #28447f;
$custom-light: #6c77a4;
$custom-dark: #000000;

JSON

{
  "hex": "#28447f",
  "rgb": {
    "r": 40,
    "g": 68,
    "b": 127
  },
  "hsl": {
    "h": 220.69,
    "s": 52.096,
    "l": 32.745
  },
  "oklch": {
    "l": 0.39745,
    "c": 0.10522,
    "h": 263.3
  },
  "luminance": 0.06118
}

Semantic roles & 50–950 ramp

primary

#28447F

secondary

#AF9254

accent

#AD4CDC

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #28447F

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

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