#28457F#28457F

#28457F is a dark, moderate blue. Relative luminance 0.062; OKLCH L 40.0% C 0.104 H 262.6°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#28457F
RGB	rgb(40, 69, 127)
HSL	hsl(220, 52%, 33%)
HSV	hsv(220, 69%, 50%)
CMYK	cmyk(68.5%, 45.7%, 0%, 50.2%)
CIE-LAB	lab(30.01, 9.59, -36.08)
CIE-LCH	lch(30.01, 37.33, 284.89°)
OKLab	oklab(39.98% -0.0133 -0.1031)
OKLCH	oklch(39.98% 0.104 262.6)
XYZ	xyz(6.8326, 6.2390, 20.9187)
Luminance	0.0624 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28457F #7F6228

analogous

#28707F #28457F #36287F

triadic

#28457F #7F2845 #457F28

tetradic

#28457F #7F2870 #7F6228 #287F36

square

#28457F #7F2870 #7F6228 #287F36

split-complementary

#28457F #7F3628 #707F28

monochromatic

#0B1222 #192C50 #28457F #375EAE #577ECA

Accessibility & contrast

On white

9.34

#28457F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#28457F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28457F

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28457F	#FFFFFF	#000000	##FFFFFF
##28457F	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294B81

Deuteranopia (green-blind)

#1A437E

Tritanopia (blue-blind)

#00525B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #28457f;
/* rgb */ color: rgb(40, 69, 127);
/* oklch */ color: oklch(40.0% 0.104 262.6);

Tailwind

colors: {
  custom: {
    50: '#6c78a4',
    500: '#28457f',
    950: '#000000',
  },
}

SCSS

$custom: #28457f;
$custom-light: #6c78a4;
$custom-dark: #000000;

JSON

{
  "hex": "#28457f",
  "rgb": {
    "r": 40,
    "g": 69,
    "b": 127
  },
  "hsl": {
    "h": 220,
    "s": 52.096,
    "l": 32.745
  },
  "oklch": {
    "l": 0.39977,
    "c": 0.10393,
    "h": 262.6
  },
  "luminance": 0.0624
}

Semantic roles & 50–950 ramp

primary

#28457F

secondary

#AF9154

accent

#AC4CDC

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #28457F

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

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