#271B8E#271B8E

#271B8E is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.5% C 0.176 H 275.8°. Best body text is #FFFFFF at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#271B8E
RGB	rgb(39, 27, 142)
HSL	hsl(246, 68%, 33%)
HSV	hsv(246, 81%, 56%)
CMYK	cmyk(72.5%, 81%, 0%, 44.3%)
CIE-LAB	lab(20.70, 42.09, -60.60)
CIE-LCH	lch(20.70, 73.78, 304.78°)
OKLab	oklab(33.5% 0.0178 -0.1752)
OKLCH	oklch(33.5% 0.176 275.8)
XYZ	xyz(6.1095, 3.1676, 25.8754)
Luminance	0.0317 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#271B8E #828E1B

analogous

#1B488E #271B8E #601B8E

triadic

#271B8E #8E271B #1B8E27

tetradic

#271B8E #8E1B48 #828E1B #1B8E60

square

#271B8E #8E1B48 #828E1B #1B8E60

split-complementary

#271B8E #8E601B #488E1B

monochromatic

#0B0727 #19115B #271B8E #3525C1 #5747DC

Accessibility & contrast

On white

12.86

#271B8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#271B8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #271B8E

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##271B8E	#FFFFFF	#000000	##FFFFFF
##271B8E	1.00	12.86	1.63	12.86
#FFFFFF	12.86	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003791

Deuteranopia (green-blind)

#002D8C

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #271b8e;
/* rgb */ color: rgb(39, 27, 142);
/* oklch */ color: oklch(33.5% 0.176 275.8);

Tailwind

colors: {
  custom: {
    50: '#735bb0',
    500: '#271b8e',
    950: '#000000',
  },
}

SCSS

$custom: #271b8e;
$custom-light: #735bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#271b8e",
  "rgb": {
    "r": 39,
    "g": 27,
    "b": 142
  },
  "hsl": {
    "h": 246.261,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.33498,
    "c": 0.17609,
    "h": 275.8
  },
  "luminance": 0.03168
}

Semantic roles & 50–950 ramp

primary

#271B8E

secondary

#B1BE47

accent

#EB3DD9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #271B8E

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

Preview Lab → · Contrast checker → · Palette generator →