#271FB3#271FB3

#271FB3 is a dark, highly saturated blue. Relative luminance 0.047; OKLCH L 38.3% C 0.216 H 271.8°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#271FB3
RGB	rgb(39, 31, 179)
HSL	hsl(243, 70%, 41%)
HSV	hsv(243, 83%, 70%)
CMYK	cmyk(78.2%, 82.7%, 0%, 29.8%)
CIE-LAB	lab(25.76, 51.73, -74.78)
CIE-LCH	lch(25.76, 90.93, 304.67°)
OKLab	oklab(38.28% 0.0069 -0.2164)
OKLCH	oklch(38.28% 0.217 271.8)
XYZ	xyz(9.4606, 4.6649, 43.0409)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#271FB3 #ABB31F

analogous

#1F61B3 #271FB3 #711FB3

triadic

#271FB3 #B3271F #1FB327

tetradic

#271FB3 #B31F61 #ABB31F #1FB371

square

#271FB3 #B31F61 #ABB31F #1FB371

split-complementary

#271FB3 #B3711F #61B31F

monochromatic

#100D4B #1C167F #271FB3 #3D33DC #6E68E5

Accessibility & contrast

On white

10.86

#271FB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#271FB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #271FB3

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##271FB3	#FFFFFF	#000000	##FFFFFF
##271FB3	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044B7

Deuteranopia (green-blind)

#0036B1

Tritanopia (blue-blind)

#004F6B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #271fb3;
/* rgb */ color: rgb(39, 31, 179);
/* oklch */ color: oklch(38.3% 0.216 271.8);

Tailwind

colors: {
  custom: {
    50: '#7b5fcb',
    500: '#271fb3',
    950: '#000000',
  },
}

SCSS

$custom: #271fb3;
$custom-light: #7b5fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#271fb3",
  "rgb": {
    "r": 39,
    "g": 31,
    "b": 179
  },
  "hsl": {
    "h": 243.243,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.38279,
    "c": 0.2165,
    "h": 271.8
  },
  "luminance": 0.04666
}

Semantic roles & 50–950 ramp

primary

#271FB3

secondary

#C5CA64

accent

#ED3BE4

background

#F8F5FC

surface

#EFEAF9

border

#CAC6D2

text

#0B0514

muted

#7C7982

Preview Lab

Preview with #271FB3

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

Preview Lab → · Contrast checker → · Palette generator →