#28457D#28457D

#28457D is a dark, moderate blue. Relative luminance 0.062; OKLCH L 39.8% C 0.101 H 262.2°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#28457D
RGB	rgb(40, 69, 125)
HSL	hsl(220, 52%, 32%)
HSV	hsv(220, 68%, 49%)
CMYK	cmyk(68%, 44.8%, 0%, 51%)
CIE-LAB	lab(29.88, 8.82, -35.04)
CIE-LCH	lch(29.88, 36.13, 284.13°)
OKLab	oklab(39.84% -0.0137 -0.1)
OKLCH	oklch(39.84% 0.101 262.2)
XYZ	xyz(6.7036, 6.1874, 20.2391)
Luminance	0.0619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28457D #7D6028

analogous

#28707D #28457D #35287D

triadic

#28457D #7D2845 #457D28

tetradic

#28457D #7D2870 #7D6028 #287D35

square

#28457D #7D2870 #7D6028 #287D35

split-complementary

#28457D #7D3528 #707D28

monochromatic

#0A1220 #192B4F #28457D #375FAB #567DC9

Accessibility & contrast

On white

9.39

#28457D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#28457D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28457D

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28457D	#FFFFFF	#000000	##FFFFFF
##28457D	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B4B7F

Deuteranopia (green-blind)

#1D437C

Tritanopia (blue-blind)

#00525B

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #28457d;
/* rgb */ color: rgb(40, 69, 125);
/* oklch */ color: oklch(39.8% 0.101 262.2);

Tailwind

colors: {
  custom: {
    50: '#6c78a3',
    500: '#28457d',
    950: '#000000',
  },
}

SCSS

$custom: #28457d;
$custom-light: #6c78a3;
$custom-dark: #000000;

JSON

{
  "hex": "#28457d",
  "rgb": {
    "r": 40,
    "g": 69,
    "b": 125
  },
  "hsl": {
    "h": 219.529,
    "s": 51.515,
    "l": 32.353
  },
  "oklch": {
    "l": 0.39838,
    "c": 0.10094,
    "h": 262.2
  },
  "luminance": 0.06188
}

Semantic roles & 50–950 ramp

primary

#28457D

secondary

#AE8F53

accent

#AA4DDB

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #28457D

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

Preview Lab → · Contrast checker → · Palette generator →