#2A1FA0#2A1FA0

#2A1FA0 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 36.3% C 0.194 H 274.6°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#2A1FA0
RGB	rgb(42, 31, 160)
HSL	hsl(245, 68%, 37%)
HSV	hsv(245, 81%, 63%)
CMYK	cmyk(73.8%, 80.6%, 0%, 37.3%)
CIE-LAB	lab(23.70, 46.04, -66.72)
CIE-LCH	lch(23.70, 81.06, 304.61°)
OKLab	oklab(36.25% 0.0155 -0.1929)
OKLCH	oklch(36.25% 0.194 274.6)
XYZ	xyz(7.7879, 4.0095, 33.6144)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1FA0 #95A01F

analogous

#1F55A0 #2A1FA0 #6A1FA0

triadic

#2A1FA0 #A02A1F #1FA02A

tetradic

#2A1FA0 #A01F55 #95A01F #1FA06A

square

#2A1FA0 #A01F55 #95A01F #1FA06A

split-complementary

#2A1FA0 #A06A1F #55A01F

monochromatic

#0F0B39 #1D156D #2A1FA0 #3729D3 #665ADF

Accessibility & contrast

On white

11.65

#2A1FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#2A1FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1FA0

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1FA0	#FFFFFF	#000000	##FFFFFF
##2A1FA0	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA4

Deuteranopia (green-blind)

#00329E

Tritanopia (blue-blind)

#004760

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2a1fa0;
/* rgb */ color: rgb(42, 31, 160);
/* oklch */ color: oklch(36.3% 0.194 274.6);

Tailwind

colors: {
  custom: {
    50: '#785ebd',
    500: '#2a1fa0',
    950: '#000000',
  },
}

SCSS

$custom: #2a1fa0;
$custom-light: #785ebd;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1fa0",
  "rgb": {
    "r": 42,
    "g": 31,
    "b": 160
  },
  "hsl": {
    "h": 245.116,
    "s": 67.539,
    "l": 37.451
  },
  "oklch": {
    "l": 0.36253,
    "c": 0.19357,
    "h": 274.6
  },
  "luminance": 0.0401
}

Semantic roles & 50–950 ramp

primary

#2A1FA0

secondary

#BAC358

accent

#EA3DDC

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2A1FA0

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

Preview Lab → · Contrast checker → · Palette generator →