#2A1F71#2A1F71

#2A1F71 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.2% C 0.134 H 281.4°. Best body text is #FFFFFF at 13.70:1 contrast (WCAG AA passes).

Color values

HEX	#2A1F71
RGB	rgb(42, 31, 113)
HSL	hsl(248, 57%, 28%)
HSV	hsv(248, 73%, 44%)
CMYK	cmyk(62.8%, 72.6%, 0%, 55.7%)
CIE-LAB	lab(18.65, 30.53, -45.59)
CIE-LCH	lch(18.65, 54.87, 303.81°)
OKLab	oklab(31.18% 0.0264 -0.1313)
OKLCH	oklch(31.18% 0.134 281.4)
XYZ	xyz(4.4245, 2.6642, 15.9007)
Luminance	0.0266 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1F71 #66711F

analogous

#1F3D71 #2A1F71 #531F71

triadic

#2A1F71 #712A1F #1F712A

tetradic

#2A1F71 #711F3D #66711F #1F7153

square

#2A1F71 #711F3D #66711F #1F7153

split-complementary

#2A1F71 #71531F #3D711F

monochromatic

#090718 #181241 #2A1F71 #3C2CA1 #5240CB

Accessibility & contrast

On white

13.70

#2A1F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#2A1F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1F71

13.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1F71	#FFFFFF	#000000	##FFFFFF
##2A1F71	1.00	13.70	1.53	13.70
#FFFFFF	13.70	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003073

Deuteranopia (green-blind)

#002A6F

Tritanopia (blue-blind)

#003545

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #2a1f71;
/* rgb */ color: rgb(42, 31, 113);
/* oklch */ color: oklch(31.2% 0.134 281.4);

Tailwind

colors: {
  custom: {
    50: '#6d5c9b',
    500: '#2a1f71',
    950: '#000000',
  },
}

SCSS

$custom: #2a1f71;
$custom-light: #6d5c9b;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1f71",
  "rgb": {
    "r": 42,
    "g": 31,
    "b": 113
  },
  "hsl": {
    "h": 248.049,
    "s": 56.944,
    "l": 28.235
  },
  "oklch": {
    "l": 0.31178,
    "c": 0.13398,
    "h": 281.4
  },
  "luminance": 0.02664
}

Semantic roles & 50–950 ramp

primary

#2A1F71

secondary

#98A547

accent

#E048CC

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08040E

muted

#7A797E

Preview Lab

Preview with #2A1F71

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

Preview Lab → · Contrast checker → · Palette generator →