#2A1D8F#2A1D8F

#2A1D8F is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.1% C 0.175 H 276.8°. Best body text is #FFFFFF at 12.57:1 contrast (WCAG AA passes).

Color values

HEX	#2A1D8F
RGB	rgb(42, 29, 143)
HSL	hsl(247, 66%, 34%)
HSV	hsv(247, 80%, 56%)
CMYK	cmyk(70.6%, 79.7%, 0%, 43.9%)
CIE-LAB	lab(21.41, 41.65, -60.05)
CIE-LCH	lch(21.41, 73.08, 304.74°)
OKLab	oklab(34.08% 0.0208 -0.1735)
OKLCH	oklch(34.08% 0.175 276.8)
XYZ	xyz(6.3505, 3.3536, 26.2939)
Luminance	0.0335 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1D8F #828F1D

analogous

#1D498F #2A1D8F #631D8F

triadic

#2A1D8F #8F2A1D #1D8F2A

tetradic

#2A1D8F #8F1D49 #828F1D #1D8F63

square

#2A1D8F #8F1D49 #828F1D #1D8F63

split-complementary

#2A1D8F #8F631D #498F1D

monochromatic

#0C0829 #1B135C #2A1D8F #3927C2 #5C4CDB

Accessibility & contrast

On white

12.57

#2A1D8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#2A1D8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1D8F

12.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1D8F	#FFFFFF	#000000	##FFFFFF
##2A1D8F	1.00	12.57	1.67	12.57
#FFFFFF	12.57	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003892

Deuteranopia (green-blind)

#002E8D

Tritanopia (blue-blind)

#003F56

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #2a1d8f;
/* rgb */ color: rgb(42, 29, 143);
/* oklch */ color: oklch(34.1% 0.175 276.8);

Tailwind

colors: {
  custom: {
    50: '#745cb1',
    500: '#2a1d8f',
    950: '#000000',
  },
}

SCSS

$custom: #2a1d8f;
$custom-light: #745cb1;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1d8f",
  "rgb": {
    "r": 42,
    "g": 29,
    "b": 143
  },
  "hsl": {
    "h": 246.842,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.34083,
    "c": 0.1748,
    "h": 276.8
  },
  "luminance": 0.03354
}

Semantic roles & 50–950 ramp

primary

#2A1D8F

secondary

#B0BD4B

accent

#E93FD6

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #2A1D8F

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

Preview Lab → · Contrast checker → · Palette generator →