#2A1C8E#2A1C8E

#2A1C8E is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.8% C 0.174 H 277.1°. Best body text is #FFFFFF at 12.69:1 contrast (WCAG AA passes).

Color values

HEX	#2A1C8E
RGB	rgb(42, 28, 142)
HSL	hsl(247, 67%, 33%)
HSV	hsv(247, 80%, 56%)
CMYK	cmyk(70.4%, 80.3%, 0%, 44.3%)
CIE-LAB	lab(21.11, 41.85, -59.91)
CIE-LCH	lch(21.11, 73.08, 304.94°)
OKLab	oklab(33.84% 0.0216 -0.1731)
OKLCH	oklch(33.84% 0.174 277.1)
XYZ	xyz(6.2510, 3.2752, 25.8887)
Luminance	0.0328 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1C8E #808E1C

analogous

#1C478E #2A1C8E #631C8E

triadic

#2A1C8E #8E2A1C #1C8E2A

tetradic

#2A1C8E #8E1C47 #808E1C #1C8E63

square

#2A1C8E #8E1C47 #808E1C #1C8E63

split-complementary

#2A1C8E #8E631C #478E1C

monochromatic

#0C0828 #1B125B #2A1C8E #3926C1 #5B49DB

Accessibility & contrast

On white

12.69

#2A1C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#2A1C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1C8E

12.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1C8E	#FFFFFF	#000000	##FFFFFF
##2A1C8E	1.00	12.69	1.66	12.69
#FFFFFF	12.69	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003791

Deuteranopia (green-blind)

#002E8C

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #2a1c8e;
/* rgb */ color: rgb(42, 28, 142);
/* oklch */ color: oklch(33.8% 0.174 277.1);

Tailwind

colors: {
  custom: {
    50: '#745bb0',
    500: '#2a1c8e',
    950: '#000000',
  },
}

SCSS

$custom: #2a1c8e;
$custom-light: #745bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1c8e",
  "rgb": {
    "r": 42,
    "g": 28,
    "b": 142
  },
  "hsl": {
    "h": 247.368,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.33844,
    "c": 0.17448,
    "h": 277.1
  },
  "luminance": 0.03276
}

Semantic roles & 50–950 ramp

primary

#2A1C8E

secondary

#AFBD49

accent

#EA3ED5

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #2A1C8E

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

Preview Lab → · Contrast checker → · Palette generator →