#271B9F#271B9F

#271B9F is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.5% C 0.196 H 273.9°. Best body text is #FFFFFF at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#271B9F
RGB	rgb(39, 27, 159)
HSL	hsl(245, 71%, 36%)
HSV	hsv(245, 83%, 62%)
CMYK	cmyk(75.5%, 83%, 0%, 37.6%)
CIE-LAB	lab(22.71, 47.44, -67.75)
CIE-LCH	lch(22.71, 82.71, 305.00°)
OKLab	oklab(35.48% 0.0132 -0.196)
OKLCH	oklch(35.48% 0.196 273.9)
XYZ	xyz(7.4846, 3.7176, 33.1173)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#271B9F #939F1B

analogous

#1B519F #271B9F #691B9F

triadic

#271B9F #9F271B #1B9F27

tetradic

#271B9F #9F1B51 #939F1B #1B9F69

square

#271B9F #9F1B51 #939F1B #1B9F69

split-complementary

#271B9F #9F691B #519F1B

monochromatic

#0D0936 #1A126B #271B9F #3424D3 #6053E2

Accessibility & contrast

On white

12.04

#271B9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#271B9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #271B9F

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##271B9F	#FFFFFF	#000000	##FFFFFF
##271B9F	1.00	12.04	1.74	12.04
#FFFFFF	12.04	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA3

Deuteranopia (green-blind)

#00309D

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #271b9f;
/* rgb */ color: rgb(39, 27, 159);
/* oklch */ color: oklch(35.5% 0.196 273.9);

Tailwind

colors: {
  custom: {
    50: '#775cbd',
    500: '#271b9f',
    950: '#000000',
  },
}

SCSS

$custom: #271b9f;
$custom-light: #775cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#271b9f",
  "rgb": {
    "r": 39,
    "g": 27,
    "b": 159
  },
  "hsl": {
    "h": 245.455,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.3548,
    "c": 0.19639,
    "h": 273.9
  },
  "luminance": 0.03718
}

Semantic roles & 50–950 ramp

primary

#271B9F

secondary

#BAC551

accent

#EE3ADD

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #271B9F

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

Preview Lab → · Contrast checker → · Palette generator →