#28318E#28318E

#28318E is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.0% C 0.152 H 272.2°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#28318E
RGB	rgb(40, 49, 142)
HSL	hsl(235, 56%, 36%)
HSV	hsv(235, 72%, 56%)
CMYK	cmyk(71.8%, 65.5%, 0%, 44.3%)
CIE-LAB	lab(25.56, 28.96, -52.60)
CIE-LCH	lch(25.56, 60.04, 298.84°)
OKLab	oklab(37% 0.0059 -0.1519)
OKLCH	oklch(37% 0.152 272.2)
XYZ	xyz(6.8542, 4.6001, 26.1126)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28318E #8E8528

analogous

#28648E #28318E #52288E

triadic

#28318E #8E2831 #318E28

tetradic

#28318E #8E2864 #8E8528 #288E52

square

#28318E #8E2864 #8E8528 #288E52

split-complementary

#28318E #8E5228 #648E28

monochromatic

#0D102F #1B215E #28318E #3541BE #5F69D2

Accessibility & contrast

On white

10.94

#28318E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#28318E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28318E

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28318E	#FFFFFF	#000000	##FFFFFF
##28318E	1.00	10.94	1.92	10.94
#FFFFFF	10.94	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004191

Deuteranopia (green-blind)

#00388C

Tritanopia (blue-blind)

#00495B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #28318e;
/* rgb */ color: rgb(40, 49, 142);
/* oklch */ color: oklch(37.0% 0.152 272.2);

Tailwind

colors: {
  custom: {
    50: '#7169b0',
    500: '#28318e',
    950: '#000000',
  },
}

SCSS

$custom: #28318e;
$custom-light: #7169b0;
$custom-dark: #000000;

JSON

{
  "hex": "#28318e",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 142
  },
  "hsl": {
    "h": 234.706,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.36996,
    "c": 0.152,
    "h": 272.2
  },
  "luminance": 0.04601
}

Semantic roles & 50–950 ramp

primary

#28318E

secondary

#B7AF5B

accent

#D248DF

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#090611

muted

#7B7A80

Preview Lab

Preview with #28318E

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

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