#2A1C8F#2A1C8F

#2A1C8F is a dark, vivid blue. Relative luminance 0.033; OKLCH L 34.0% C 0.176 H 277.0°. Best body text is #FFFFFF at 12.64:1 contrast (WCAG AA passes).

Color values

HEX	#2A1C8F
RGB	rgb(42, 28, 143)
HSL	hsl(247, 67%, 34%)
HSV	hsv(247, 80%, 56%)
CMYK	cmyk(70.6%, 80.4%, 0%, 43.9%)
CIE-LAB	lab(21.23, 42.17, -60.35)
CIE-LCH	lch(21.23, 73.62, 304.95°)
OKLab	oklab(33.96% 0.0213 -0.1744)
OKLCH	oklch(33.96% 0.176 277)
XYZ	xyz(6.3264, 3.3053, 26.2859)
Luminance	0.0331 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1C8F #818F1C

analogous

#1C478F #2A1C8F #631C8F

triadic

#2A1C8F #8F2A1C #1C8F2A

tetradic

#2A1C8F #8F1C47 #818F1C #1C8F63

square

#2A1C8F #8F1C47 #818F1C #1C8F63

split-complementary

#2A1C8F #8F631C #478F1C

monochromatic

#0C0829 #1B125C #2A1C8F #3926C2 #5C4ADC

Accessibility & contrast

On white

12.64

#2A1C8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#2A1C8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1C8F

12.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1C8F	#FFFFFF	#000000	##FFFFFF
##2A1C8F	1.00	12.64	1.66	12.64
#FFFFFF	12.64	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003892

Deuteranopia (green-blind)

#002E8D

Tritanopia (blue-blind)

#003F55

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #2a1c8f;
/* rgb */ color: rgb(42, 28, 143);
/* oklch */ color: oklch(34.0% 0.176 277.0);

Tailwind

colors: {
  custom: {
    50: '#745bb1',
    500: '#2a1c8f',
    950: '#000000',
  },
}

SCSS

$custom: #2a1c8f;
$custom-light: #745bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1c8f",
  "rgb": {
    "r": 42,
    "g": 28,
    "b": 143
  },
  "hsl": {
    "h": 247.304,
    "s": 67.251,
    "l": 33.529
  },
  "oklch": {
    "l": 0.33957,
    "c": 0.1757,
    "h": 277
  },
  "luminance": 0.03306
}

Semantic roles & 50–950 ramp

primary

#2A1C8F

secondary

#AFBE49

accent

#EA3ED5

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #2A1C8F

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

Preview Lab → · Contrast checker → · Palette generator →