#271B81#271B81

#271B81 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.0% C 0.160 H 277.6°. Best body text is #FFFFFF at 13.46:1 contrast (WCAG AA passes).

Color values

HEX	#271B81
RGB	rgb(39, 27, 129)
HSL	hsl(247, 65%, 31%)
HSV	hsv(247, 79%, 51%)
CMYK	cmyk(69.8%, 79.1%, 0%, 49.4%)
CIE-LAB	lab(19.22, 37.86, -54.88)
CIE-LCH	lch(19.22, 66.68, 304.60°)
OKLab	oklab(32.03% 0.0213 -0.1586)
OKLCH	oklch(32.03% 0.16 277.6)
XYZ	xyz(5.1898, 2.7997, 21.0315)
Luminance	0.0280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#271B81 #75811B

analogous

#1B4281 #271B81 #5A1B81

triadic

#271B81 #81271B #1B8127

tetradic

#271B81 #811B42 #75811B #1B815A

square

#271B81 #811B42 #75811B #1B815A

split-complementary

#271B81 #815A1B #42811B

monochromatic

#08061C #18104E #271B81 #3626B4 #513FD7

Accessibility & contrast

On white

13.46

#271B81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#271B81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #271B81

13.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##271B81	#FFFFFF	#000000	##FFFFFF
##271B81	1.00	13.46	1.56	13.46
#FFFFFF	13.46	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003384

Deuteranopia (green-blind)

#002A7F

Tritanopia (blue-blind)

#00394D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #271b81;
/* rgb */ color: rgb(39, 27, 129);
/* oklch */ color: oklch(32.0% 0.160 277.6);

Tailwind

colors: {
  custom: {
    50: '#6f5aa7',
    500: '#271b81',
    950: '#000000',
  },
}

SCSS

$custom: #271b81;
$custom-light: #6f5aa7;
$custom-dark: #000000;

JSON

{
  "hex": "#271b81",
  "rgb": {
    "r": 39,
    "g": 27,
    "b": 129
  },
  "hsl": {
    "h": 247.059,
    "s": 65.385,
    "l": 30.588
  },
  "oklch": {
    "l": 0.32027,
    "c": 0.15998,
    "h": 277.6
  },
  "luminance": 0.028
}

Semantic roles & 50–950 ramp

primary

#271B81

secondary

#A7B543

accent

#E83FD4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #271B81

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

Preview Lab → · Contrast checker → · Palette generator →