#271B7B#271B7B

#271B7B is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.4% C 0.152 H 278.6°. Best body text is #FFFFFF at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#271B7B
RGB	rgb(39, 27, 123)
HSL	hsl(248, 64%, 29%)
HSV	hsv(248, 78%, 48%)
CMYK	cmyk(68.3%, 78%, 0%, 51.8%)
CIE-LAB	lab(18.56, 35.88, -52.16)
CIE-LCH	lch(18.56, 63.31, 304.52°)
OKLab	oklab(31.36% 0.0228 -0.1506)
OKLCH	oklch(31.36% 0.152 278.6)
XYZ	xyz(4.8026, 2.6449, 18.9925)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#271B7B #6F7B1B

analogous

#1B3F7B #271B7B #571B7B

triadic

#271B7B #7B271B #1B7B27

tetradic

#271B7B #7B1B3F #6F7B1B #1B7B57

square

#271B7B #7B1B3F #6F7B1B #1B7B57

split-complementary

#271B7B #7B571B #3F7B1B

monochromatic

#080619 #171049 #271B7B #3726AD #4F3CD4

Accessibility & contrast

On white

13.73

#271B7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#271B7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #271B7B

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##271B7B	#FFFFFF	#000000	##FFFFFF
##271B7B	1.00	13.73	1.53	13.73
#FFFFFF	13.73	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317E

Deuteranopia (green-blind)

#002979

Tritanopia (blue-blind)

#00374A

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #271b7b;
/* rgb */ color: rgb(39, 27, 123);
/* oklch */ color: oklch(31.4% 0.152 278.6);

Tailwind

colors: {
  custom: {
    50: '#6e59a2',
    500: '#271b7b',
    950: '#000000',
  },
}

SCSS

$custom: #271b7b;
$custom-light: #6e59a2;
$custom-dark: #000000;

JSON

{
  "hex": "#271b7b",
  "rgb": {
    "r": 39,
    "g": 27,
    "b": 123
  },
  "hsl": {
    "h": 247.5,
    "s": 64,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31364,
    "c": 0.15234,
    "h": 278.6
  },
  "luminance": 0.02645
}

Semantic roles & 50–950 ramp

primary

#271B7B

secondary

#A2AF43

accent

#E741D2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #271B7B

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

Preview Lab → · Contrast checker → · Palette generator →