#28238F#28238F

#28238F is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.8% C 0.169 H 275.0°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#28238F
RGB	rgb(40, 35, 143)
HSL	hsl(243, 61%, 35%)
HSV	hsv(243, 76%, 56%)
CMYK	cmyk(72%, 75.5%, 0%, 43.9%)
CIE-LAB	lab(22.43, 38.12, -58.37)
CIE-LCH	lch(22.43, 69.71, 303.15°)
OKLab	oklab(34.76% 0.0149 -0.1688)
OKLCH	oklch(34.76% 0.169 275)
XYZ	xyz(6.4324, 3.6357, 26.3441)
Luminance	0.0364 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28238F #8A8F23

analogous

#23548F #28238F #5E238F

triadic

#28238F #8F2823 #238F28

tetradic

#28238F #8F2354 #8A8F23 #238F5E

square

#28238F #8F2354 #8A8F23 #238F5E

split-complementary

#28238F #8F5E23 #548F23

monochromatic

#0C0B2D #1A175E #28238F #362FC0 #5D57D6

Accessibility & contrast

On white

12.16

#28238F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#28238F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28238F

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28238F	#FFFFFF	#000000	##FFFFFF
##28238F	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A92

Deuteranopia (green-blind)

#00318D

Tritanopia (blue-blind)

#004257

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #28238f;
/* rgb */ color: rgb(40, 35, 143);
/* oklch */ color: oklch(34.8% 0.169 275.0);

Tailwind

colors: {
  custom: {
    50: '#725fb1',
    500: '#28238f',
    950: '#000000',
  },
}

SCSS

$custom: #28238f;
$custom-light: #725fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#28238f",
  "rgb": {
    "r": 40,
    "g": 35,
    "b": 143
  },
  "hsl": {
    "h": 242.778,
    "s": 60.674,
    "l": 34.902
  },
  "oklch": {
    "l": 0.34763,
    "c": 0.16942,
    "h": 275
  },
  "luminance": 0.03636
}

Semantic roles & 50–950 ramp

primary

#28238F

secondary

#B5BA54

accent

#E444DC

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #28238F

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

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