#28238D#28238D

#28238D is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.5% C 0.167 H 275.3°. Best body text is #FFFFFF at 12.24:1 contrast (WCAG AA passes).

Color values

HEX	#28238D
RGB	rgb(40, 35, 141)
HSL	hsl(243, 60%, 35%)
HSV	hsv(243, 75%, 55%)
CMYK	cmyk(71.6%, 75.2%, 0%, 44.7%)
CIE-LAB	lab(22.22, 37.44, -57.48)
CIE-LCH	lch(22.22, 68.59, 303.08°)
OKLab	oklab(34.55% 0.0153 -0.1662)
OKLCH	oklch(34.55% 0.167 275.3)
XYZ	xyz(6.2822, 3.5757, 25.5532)
Luminance	0.0358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28238D #888D23

analogous

#23538D #28238D #5D238D

triadic

#28238D #8D2823 #238D28

tetradic

#28238D #8D2353 #888D23 #238D5D

square

#28238D #8D2353 #888D23 #238D5D

split-complementary

#28238D #8D5D23 #538D23

monochromatic

#0C0B2B #1A175C #28238D #362FBE #5B55D5

Accessibility & contrast

On white

12.24

#28238D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#28238D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28238D

12.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28238D	#FFFFFF	#000000	##FFFFFF
##28238D	1.00	12.24	1.72	12.24
#FFFFFF	12.24	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A90

Deuteranopia (green-blind)

#00308B

Tritanopia (blue-blind)

#004156

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #28238d;
/* rgb */ color: rgb(40, 35, 141);
/* oklch */ color: oklch(34.5% 0.167 275.3);

Tailwind

colors: {
  custom: {
    50: '#725faf',
    500: '#28238d',
    950: '#000000',
  },
}

SCSS

$custom: #28238d;
$custom-light: #725faf;
$custom-dark: #000000;

JSON

{
  "hex": "#28238d",
  "rgb": {
    "r": 40,
    "g": 35,
    "b": 141
  },
  "hsl": {
    "h": 242.83,
    "s": 60.227,
    "l": 34.51
  },
  "oklch": {
    "l": 0.34549,
    "c": 0.16686,
    "h": 275.3
  },
  "luminance": 0.03576
}

Semantic roles & 50–950 ramp

primary

#28238D

secondary

#B4B953

accent

#E344DC

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090511

muted

#7B7980

Preview Lab

Preview with #28238D

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

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