#28239F#28239F

#28239F is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.5% C 0.189 H 273.5°. Best body text is #FFFFFF at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#28239F
RGB	rgb(40, 35, 159)
HSL	hsl(242, 64%, 38%)
HSV	hsv(242, 78%, 62%)
CMYK	cmyk(74.8%, 78%, 0%, 37.6%)
CIE-LAB	lab(24.18, 43.46, -65.32)
CIE-LCH	lch(24.18, 78.46, 303.64°)
OKLab	oklab(36.52% 0.0115 -0.189)
OKLCH	oklch(36.52% 0.189 273.5)
XYZ	xyz(7.7320, 4.1556, 33.1888)
Luminance	0.0416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28239F #9A9F23

analogous

#235C9F #28239F #66239F

triadic

#28239F #9F2823 #239F28

tetradic

#28239F #9F235C #9A9F23 #239F66

square

#28239F #9F235C #9A9F23 #239F66

split-complementary

#28239F #9F6623 #5C9F23

monochromatic

#0F0D3B #1B186D #28239F #352ED1 #6560DC

Accessibility & contrast

On white

11.47

#28239F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#28239F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28239F

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28239F	#FFFFFF	#000000	##FFFFFF
##28239F	1.00	11.47	1.83	11.47
#FFFFFF	11.47	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FA3

Deuteranopia (green-blind)

#00339D

Tritanopia (blue-blind)

#004860

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #28239f;
/* rgb */ color: rgb(40, 35, 159);
/* oklch */ color: oklch(36.5% 0.189 273.5);

Tailwind

colors: {
  custom: {
    50: '#7660bd',
    500: '#28239f',
    950: '#000000',
  },
}

SCSS

$custom: #28239f;
$custom-light: #7660bd;
$custom-dark: #000000;

JSON

{
  "hex": "#28239f",
  "rgb": {
    "r": 40,
    "g": 35,
    "b": 159
  },
  "hsl": {
    "h": 242.419,
    "s": 63.918,
    "l": 38.039
  },
  "oklch": {
    "l": 0.36518,
    "c": 0.18935,
    "h": 273.5
  },
  "luminance": 0.04156
}

Semantic roles & 50–950 ramp

primary

#28239F

secondary

#BDC15D

accent

#E741E0

background

#F7F5FB

surface

#EEEAF7

border

#C9C6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #28239F

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

Preview Lab → · Contrast checker → · Palette generator →