#2D288A#2D288A

#2D288A is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.4% C 0.156 H 277.1°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#2D288A
RGB	rgb(45, 40, 138)
HSL	hsl(243, 55%, 35%)
HSV	hsv(243, 71%, 54%)
CMYK	cmyk(67.4%, 71%, 0%, 45.9%)
CIE-LAB	lab(23.37, 34.00, -53.69)
CIE-LCH	lch(23.37, 63.55, 302.34°)
OKLab	oklab(35.38% 0.0192 -0.155)
OKLCH	oklch(35.38% 0.156 277.1)
XYZ	xyz(6.4269, 3.9099, 24.4558)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D288A #858A28

analogous

#28548A #2D288A #5E288A

triadic

#2D288A #8A2D28 #288A2D

tetradic

#2D288A #8A2854 #858A28 #288A5E

square

#2D288A #8A2854 #858A28 #288A5E

split-complementary

#2D288A #8A5E28 #548A28

monochromatic

#0E0C2B #1E1A5B #2D288A #3C36B9 #625DD0

Accessibility & contrast

On white

11.78

#2D288A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#2D288A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D288A

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D288A	#FFFFFF	#000000	##FFFFFF
##2D288A	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8D

Deuteranopia (green-blind)

#003388

Tritanopia (blue-blind)

#004256

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2d288a;
/* rgb */ color: rgb(45, 40, 138);
/* oklch */ color: oklch(35.4% 0.156 277.1);

Tailwind

colors: {
  custom: {
    50: '#7363ad',
    500: '#2d288a',
    950: '#000000',
  },
}

SCSS

$custom: #2d288a;
$custom-light: #7363ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2d288a",
  "rgb": {
    "r": 45,
    "g": 40,
    "b": 138
  },
  "hsl": {
    "h": 243.061,
    "s": 55.056,
    "l": 34.902
  },
  "oklch": {
    "l": 0.35378,
    "c": 0.15618,
    "h": 277.1
  },
  "luminance": 0.0391
}

Semantic roles & 50–950 ramp

primary

#2D288A

secondary

#B0B559

accent

#DE49D7

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#090510

muted

#7B797F

Preview Lab

Preview with #2D288A

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

Preview Lab → · Contrast checker → · Palette generator →