#2A288D#2A288D

#2A288D is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.5% C 0.161 H 275.3°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#2A288D
RGB	rgb(42, 40, 141)
HSL	hsl(241, 56%, 35%)
HSV	hsv(241, 72%, 55%)
CMYK	cmyk(70.2%, 71.6%, 0%, 44.7%)
CIE-LAB	lab(23.45, 34.65, -55.44)
CIE-LCH	lch(23.45, 65.38, 302.00°)
OKLab	oklab(35.47% 0.0148 -0.1602)
OKLCH	oklch(35.47% 0.161 275.3)
XYZ	xyz(6.5198, 3.9323, 25.6096)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A288D #8B8D28

analogous

#28588D #2A288D #5C288D

triadic

#2A288D #8D2A28 #288D2A

tetradic

#2A288D #8D2858 #8B8D28 #288D5C

square

#2A288D #8D2858 #8B8D28 #288D5C

split-complementary

#2A288D #8D5C28 #588D28

monochromatic

#0E0D2E #1C1A5D #2A288D #3836BD #605ED1

Accessibility & contrast

On white

11.75

#2A288D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#2A288D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A288D

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A288D	#FFFFFF	#000000	##FFFFFF
##2A288D	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C90

Deuteranopia (green-blind)

#00338B

Tritanopia (blue-blind)

#004457

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2a288d;
/* rgb */ color: rgb(42, 40, 141);
/* oklch */ color: oklch(35.5% 0.161 275.3);

Tailwind

colors: {
  custom: {
    50: '#7263af',
    500: '#2a288d',
    950: '#000000',
  },
}

SCSS

$custom: #2a288d;
$custom-light: #7263af;
$custom-dark: #000000;

JSON

{
  "hex": "#2a288d",
  "rgb": {
    "r": 42,
    "g": 40,
    "b": 141
  },
  "hsl": {
    "h": 241.188,
    "s": 55.801,
    "l": 35.49
  },
  "oklch": {
    "l": 0.35465,
    "c": 0.16088,
    "h": 275.3
  },
  "luminance": 0.03933
}

Semantic roles & 50–950 ramp

primary

#2A288D

secondary

#B5B75A

accent

#DF49DC

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#090511

muted

#7B7980

Preview Lab

Preview with #2A288D

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

Preview Lab → · Contrast checker → · Palette generator →