#28458A#28458A

#28458A is a dark, vivid blue. Relative luminance 0.065; OKLCH L 40.8% C 0.120 H 264.5°. Best body text is #FFFFFF at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#28458A
RGB	rgb(40, 69, 138)
HSL	hsl(222, 55%, 35%)
HSV	hsv(222, 71%, 54%)
CMYK	cmyk(71%, 50%, 0%, 45.9%)
CIE-LAB	lab(30.74, 13.84, -41.72)
CIE-LCH	lch(30.74, 43.96, 288.35°)
OKLab	oklab(40.77% -0.0115 -0.1197)
OKLCH	oklch(40.77% 0.12 264.5)
XYZ	xyz(7.5890, 6.5416, 24.9025)
Luminance	0.0654 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28458A #8A6D28

analogous

#28768A #28458A #3C288A

triadic

#28458A #8A2845 #458A28

tetradic

#28458A #8A2876 #8A6D28 #288A3C

square

#28458A #8A2876 #8A6D28 #288A3C

split-complementary

#28458A #8A3C28 #768A28

monochromatic

#0C162B #1A2D5B #28458A #365DB9 #5D7FD0

Accessibility & contrast

On white

9.10

#28458A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#28458A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28458A

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28458A	#FFFFFF	#000000	##FFFFFF
##28458A	1.00	9.10	2.31	9.10
#FFFFFF	9.10	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4D8D

Deuteranopia (green-blind)

#044489

Tritanopia (blue-blind)

#005561

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #28458a;
/* rgb */ color: rgb(40, 69, 138);
/* oklch */ color: oklch(40.8% 0.120 264.5);

Tailwind

colors: {
  custom: {
    50: '#6e78ad',
    500: '#28458a',
    950: '#000000',
  },
}

SCSS

$custom: #28458a;
$custom-light: #6e78ad;
$custom-dark: #000000;

JSON

{
  "hex": "#28458a",
  "rgb": {
    "r": 40,
    "g": 69,
    "b": 138
  },
  "hsl": {
    "h": 222.245,
    "s": 55.056,
    "l": 34.902
  },
  "oklch": {
    "l": 0.40774,
    "c": 0.12021,
    "h": 264.5
  },
  "luminance": 0.06542
}

Semantic roles & 50–950 ramp

primary

#28458A

secondary

#B59A59

accent

#B249DE

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #28458A

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

Preview Lab → · Contrast checker → · Palette generator →