#2B2571#2B2571

#2B2571 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.3% C 0.126 H 280.2°. Best body text is #FFFFFF at 13.08:1 contrast (WCAG AA passes).

Color values

HEX	#2B2571
RGB	rgb(43, 37, 113)
HSL	hsl(245, 51%, 29%)
HSV	hsv(245, 67%, 44%)
CMYK	cmyk(61.9%, 67.3%, 0%, 55.7%)
CIE-LAB	lab(20.16, 26.85, -43.11)
CIE-LCH	lch(20.16, 50.79, 301.92°)
OKLab	oklab(32.29% 0.0223 -0.124)
OKLCH	oklch(32.29% 0.126 280.2)
XYZ	xyz(4.6375, 3.0287, 15.9598)
Luminance	0.0303 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B2571 #6B7125

analogous

#254571 #2B2571 #512571

triadic

#2B2571 #712B25 #25712B

tetradic

#2B2571 #712545 #6B7125 #257151

square

#2B2571 #712545 #6B7125 #257151

split-complementary

#2B2571 #715125 #457125

monochromatic

#090817 #191643 #2B2571 #3D349F #564CC4

Accessibility & contrast

On white

13.08

#2B2571 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#2B2571 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B2571

13.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B2571	#FFFFFF	#000000	##FFFFFF
##2B2571	1.00	13.08	1.61	13.08
#FFFFFF	13.08	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003373

Deuteranopia (green-blind)

#002E70

Tritanopia (blue-blind)

#003847

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #2b2571;
/* rgb */ color: rgb(43, 37, 113);
/* oklch */ color: oklch(32.3% 0.126 280.2);

Tailwind

colors: {
  custom: {
    50: '#6d609b',
    500: '#2b2571',
    950: '#000000',
  },
}

SCSS

$custom: #2b2571;
$custom-light: #6d609b;
$custom-dark: #000000;

JSON

{
  "hex": "#2b2571",
  "rgb": {
    "r": 43,
    "g": 37,
    "b": 113
  },
  "hsl": {
    "h": 244.737,
    "s": 50.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.32293,
    "c": 0.12603,
    "h": 280.2
  },
  "luminance": 0.03029
}

Semantic roles & 50–950 ramp

primary

#2B2571

secondary

#9DA44E

accent

#DA4ECF

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08050E

muted

#7B797E

Preview Lab

Preview with #2B2571

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

Preview Lab → · Contrast checker → · Palette generator →