#271B71#271B71

#271B71 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.3% C 0.139 H 280.4°. Best body text is #FFFFFF at 14.18:1 contrast (WCAG AA passes).

Color values

HEX	#271B71
RGB	rgb(39, 27, 113)
HSL	hsl(248, 61%, 27%)
HSV	hsv(248, 76%, 44%)
CMYK	cmyk(65.5%, 76.1%, 0%, 55.7%)
CIE-LAB	lab(17.49, 32.52, -47.49)
CIE-LCH	lch(17.49, 57.56, 304.40°)
OKLab	oklab(30.29% 0.0252 -0.137)
OKLCH	oklch(30.29% 0.139 280.4)
XYZ	xyz(4.2083, 2.4071, 15.8624)
Luminance	0.0241 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#271B71 #65711B

analogous

#1B3A71 #271B71 #521B71

triadic

#271B71 #71271B #1B7127

tetradic

#271B71 #711B3A #65711B #1B7152

square

#271B71 #711B3A #65711B #1B7152

split-complementary

#271B71 #71521B #3A711B

monochromatic

#090619 #160F40 #271B71 #3827A2 #4C37CF

Accessibility & contrast

On white

14.18

#271B71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#271B71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #271B71

14.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##271B71	#FFFFFF	#000000	##FFFFFF
##271B71	1.00	14.18	1.48	14.18
#FFFFFF	14.18	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E74

Deuteranopia (green-blind)

#00286F

Tritanopia (blue-blind)

#003344

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #271b71;
/* rgb */ color: rgb(39, 27, 113);
/* oklch */ color: oklch(30.3% 0.139 280.4);

Tailwind

colors: {
  custom: {
    50: '#6c599b',
    500: '#271b71',
    950: '#000000',
  },
}

SCSS

$custom: #271b71;
$custom-light: #6c599b;
$custom-dark: #000000;

JSON

{
  "hex": "#271b71",
  "rgb": {
    "r": 39,
    "g": 27,
    "b": 113
  },
  "hsl": {
    "h": 248.372,
    "s": 61.429,
    "l": 27.451
  },
  "oklch": {
    "l": 0.30288,
    "c": 0.1393,
    "h": 280.4
  },
  "luminance": 0.02407
}

Semantic roles & 50–950 ramp

primary

#271B71

secondary

#98A642

accent

#E543CE

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08030E

muted

#7A787E

Preview Lab

Preview with #271B71

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

Preview Lab → · Contrast checker → · Palette generator →