#28458F#28458F

#28458F is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.2% C 0.128 H 265.1°. Best body text is #FFFFFF at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#28458F
RGB	rgb(40, 69, 143)
HSL	hsl(223, 56%, 36%)
HSV	hsv(223, 72%, 56%)
CMYK	cmyk(72%, 51.7%, 0%, 43.9%)
CIE-LAB	lab(31.09, 15.78, -44.23)
CIE-LCH	lch(31.09, 46.96, 289.63°)
OKLab	oklab(41.15% -0.0108 -0.127)
OKLCH	oklch(41.15% 0.128 265.1)
XYZ	xyz(7.9594, 6.6897, 26.8530)
Luminance	0.0669 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28458F #8F7228

analogous

#28788F #28458F #3E288F

triadic

#28458F #8F2845 #458F28

tetradic

#28458F #8F2878 #8F7228 #288F3E

square

#28458F #8F2878 #8F7228 #288F3E

split-complementary

#28458F #8F3E28 #788F28

monochromatic

#0D172F #1B2E5F #28458F #355CBF #5F80D2

Accessibility & contrast

On white

8.98

#28458F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#28458F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28458F

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28458F	#FFFFFF	#000000	##FFFFFF
##28458F	1.00	8.98	2.34	8.98
#FFFFFF	8.98	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194E92

Deuteranopia (green-blind)

#00458E

Tritanopia (blue-blind)

#005763

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #28458f;
/* rgb */ color: rgb(40, 69, 143);
/* oklch */ color: oklch(41.2% 0.128 265.1);

Tailwind

colors: {
  custom: {
    50: '#7078b0',
    500: '#28458f',
    950: '#000000',
  },
}

SCSS

$custom: #28458f;
$custom-light: #7078b0;
$custom-dark: #000000;

JSON

{
  "hex": "#28458f",
  "rgb": {
    "r": 40,
    "g": 69,
    "b": 143
  },
  "hsl": {
    "h": 223.107,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.41153,
    "c": 0.12751,
    "h": 265.1
  },
  "luminance": 0.06691
}

Semantic roles & 50–950 ramp

primary

#28458F

secondary

#B89E5B

accent

#B548E0

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #28458F

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

Preview Lab → · Contrast checker → · Palette generator →