#271B78#271B78

#271B78 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.0% C 0.148 H 279.1°. Best body text is #FFFFFF at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#271B78
RGB	rgb(39, 27, 120)
HSL	hsl(248, 63%, 29%)
HSV	hsv(248, 78%, 47%)
CMYK	cmyk(67.5%, 77.5%, 0%, 52.9%)
CIE-LAB	lab(18.24, 34.88, -50.78)
CIE-LCH	lch(18.24, 61.60, 304.48°)
OKLab	oklab(31.04% 0.0235 -0.1466)
OKLCH	oklch(31.04% 0.148 279.1)
XYZ	xyz(4.6177, 2.5709, 18.0185)
Luminance	0.0257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#271B78 #6C781B

analogous

#1B3E78 #271B78 #561B78

triadic

#271B78 #78271B #1B7827

tetradic

#271B78 #781B3E #6C781B #1B7856

square

#271B78 #781B3E #6C781B #1B7856

split-complementary

#271B78 #78561B #3E781B

monochromatic

#080619 #171046 #271B78 #3726AA #4E3BD3

Accessibility & contrast

On white

13.87

#271B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#271B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #271B78

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##271B78	#FFFFFF	#000000	##FFFFFF
##271B78	1.00	13.87	1.51	13.87
#FFFFFF	13.87	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307B

Deuteranopia (green-blind)

#002976

Tritanopia (blue-blind)

#003648

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #271b78;
/* rgb */ color: rgb(39, 27, 120);
/* oklch */ color: oklch(31.0% 0.148 279.1);

Tailwind

colors: {
  custom: {
    50: '#6d59a0',
    500: '#271b78',
    950: '#000000',
  },
}

SCSS

$custom: #271b78;
$custom-light: #6d59a0;
$custom-dark: #000000;

JSON

{
  "hex": "#271b78",
  "rgb": {
    "r": 39,
    "g": 27,
    "b": 120
  },
  "hsl": {
    "h": 247.742,
    "s": 63.265,
    "l": 28.824
  },
  "oklch": {
    "l": 0.31038,
    "c": 0.14847,
    "h": 279.1
  },
  "luminance": 0.02571
}

Semantic roles & 50–950 ramp

primary

#271B78

secondary

#9FAC43

accent

#E641D1

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08040F

muted

#7B797F

Preview Lab

Preview with #271B78

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

Preview Lab → · Contrast checker → · Palette generator →