#271DA1#271DA1

#271DA1 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.9% C 0.197 H 273.5°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#271DA1
RGB	rgb(39, 29, 161)
HSL	hsl(245, 69%, 37%)
HSV	hsv(245, 82%, 63%)
CMYK	cmyk(75.8%, 82%, 0%, 36.9%)
CIE-LAB	lab(23.28, 47.11, -68.04)
CIE-LCH	lch(23.28, 82.75, 304.70°)
OKLab	oklab(35.94% 0.012 -0.1968)
OKLCH	oklch(35.94% 0.197 273.5)
XYZ	xyz(7.7069, 3.8825, 34.0545)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#271DA1 #97A11D

analogous

#1D55A1 #271DA1 #691DA1

triadic

#271DA1 #A1271D #1DA127

tetradic

#271DA1 #A11D55 #97A11D #1DA169

square

#271DA1 #A11D55 #97A11D #1DA169

split-complementary

#271DA1 #A1691D #55A11D

monochromatic

#0E0A39 #1A146D #271DA1 #3426D5 #6258E1

Accessibility & contrast

On white

11.82

#271DA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#271DA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #271DA1

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##271DA1	#FFFFFF	#000000	##FFFFFF
##271DA1	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA5

Deuteranopia (green-blind)

#00319F

Tritanopia (blue-blind)

#004760

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #271da1;
/* rgb */ color: rgb(39, 29, 161);
/* oklch */ color: oklch(35.9% 0.197 273.5);

Tailwind

colors: {
  custom: {
    50: '#775dbe',
    500: '#271da1',
    950: '#000000',
  },
}

SCSS

$custom: #271da1;
$custom-light: #775dbe;
$custom-dark: #000000;

JSON

{
  "hex": "#271da1",
  "rgb": {
    "r": 39,
    "g": 29,
    "b": 161
  },
  "hsl": {
    "h": 244.545,
    "s": 69.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.3594,
    "c": 0.19718,
    "h": 273.5
  },
  "luminance": 0.03883
}

Semantic roles & 50–950 ramp

primary

#271DA1

secondary

#BCC455

accent

#EC3CDF

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #271DA1

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

Preview Lab → · Contrast checker → · Palette generator →