#271B77#271B77

#271B77 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.9% C 0.147 H 279.3°. Best body text is #FFFFFF at 13.91:1 contrast (WCAG AA passes).

Color values

HEX	#271B77
RGB	rgb(39, 27, 119)
HSL	hsl(248, 63%, 29%)
HSV	hsv(248, 77%, 47%)
CMYK	cmyk(67.2%, 77.3%, 0%, 53.3%)
CIE-LAB	lab(18.13, 34.54, -50.31)
CIE-LCH	lch(18.13, 61.03, 304.47°)
OKLab	oklab(30.93% 0.0238 -0.1452)
OKLCH	oklch(30.93% 0.147 279.3)
XYZ	xyz(4.5573, 2.5467, 17.7006)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#271B77 #6B771B

analogous

#1B3D77 #271B77 #551B77

triadic

#271B77 #77271B #1B7727

tetradic

#271B77 #771B3D #6B771B #1B7755

square

#271B77 #771B3D #6B771B #1B7755

split-complementary

#271B77 #77551B #3D771B

monochromatic

#080619 #171045 #271B77 #3726A9 #4E3AD2

Accessibility & contrast

On white

13.91

#271B77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#271B77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #271B77

13.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##271B77	#FFFFFF	#000000	##FFFFFF
##271B77	1.00	13.91	1.51	13.91
#FFFFFF	13.91	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307A

Deuteranopia (green-blind)

#002975

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #271b77;
/* rgb */ color: rgb(39, 27, 119);
/* oklch */ color: oklch(30.9% 0.147 279.3);

Tailwind

colors: {
  custom: {
    50: '#6d599f',
    500: '#271b77',
    950: '#000000',
  },
}

SCSS

$custom: #271b77;
$custom-light: #6d599f;
$custom-dark: #000000;

JSON

{
  "hex": "#271b77",
  "rgb": {
    "r": 39,
    "g": 27,
    "b": 119
  },
  "hsl": {
    "h": 247.826,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30929,
    "c": 0.14717,
    "h": 279.3
  },
  "luminance": 0.02547
}

Semantic roles & 50–950 ramp

primary

#271B77

secondary

#9EAB42

accent

#E642D1

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040F

muted

#7B797E

Preview Lab

Preview with #271B77

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

Preview Lab → · Contrast checker → · Palette generator →