#271F9B#271F9B

#271F9B is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.5% C 0.188 H 273.9°. Best body text is #FFFFFF at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#271F9B
RGB	rgb(39, 31, 155)
HSL	hsl(244, 67%, 36%)
HSV	hsv(244, 80%, 61%)
CMYK	cmyk(74.8%, 80%, 0%, 39.2%)
CIE-LAB	lab(22.92, 44.20, -64.96)
CIE-LCH	lch(22.92, 78.58, 304.23°)
OKLab	oklab(35.49% 0.0128 -0.1879)
OKLCH	oklch(35.49% 0.188 273.9)
XYZ	xyz(7.2411, 3.7771, 31.3514)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#271F9B #939B1F

analogous

#1F559B #271F9B #651F9B

triadic

#271F9B #9B271F #1F9B27

tetradic

#271F9B #9B1F55 #939B1F #1F9B65

square

#271F9B #9B1F55 #939B1F #1F9B65

split-complementary

#271F9B #9B651F #559B1F

monochromatic

#0D0B35 #1A1568 #271F9B #3429CE #6057DD

Accessibility & contrast

On white

11.96

#271F9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#271F9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #271F9B

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##271F9B	#FFFFFF	#000000	##FFFFFF
##271F9B	1.00	11.96	1.76	11.96
#FFFFFF	11.96	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9E

Deuteranopia (green-blind)

#003199

Tritanopia (blue-blind)

#00455D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #271f9b;
/* rgb */ color: rgb(39, 31, 155);
/* oklch */ color: oklch(35.5% 0.188 273.9);

Tailwind

colors: {
  custom: {
    50: '#755eba',
    500: '#271f9b',
    950: '#000000',
  },
}

SCSS

$custom: #271f9b;
$custom-light: #755eba;
$custom-dark: #000000;

JSON

{
  "hex": "#271f9b",
  "rgb": {
    "r": 39,
    "g": 31,
    "b": 155
  },
  "hsl": {
    "h": 243.871,
    "s": 66.667,
    "l": 36.471
  },
  "oklch": {
    "l": 0.35485,
    "c": 0.18835,
    "h": 273.9
  },
  "luminance": 0.03778
}

Semantic roles & 50–950 ramp

primary

#271F9B

secondary

#BAC155

accent

#EA3EDF

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #271F9B

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

Preview Lab → · Contrast checker → · Palette generator →