#271B74#271B74

#271B74 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.143 H 279.8°. Best body text is #FFFFFF at 14.04:1 contrast (WCAG AA passes).

Color values

HEX	#271B74
RGB	rgb(39, 27, 116)
HSL	hsl(248, 62%, 28%)
HSV	hsv(248, 77%, 45%)
CMYK	cmyk(66.4%, 76.7%, 0%, 54.5%)
CIE-LAB	lab(17.81, 33.53, -48.91)
CIE-LCH	lch(17.81, 59.30, 304.43°)
OKLab	oklab(30.61% 0.0245 -0.1411)
OKLCH	oklch(30.61% 0.143 279.8)
XYZ	xyz(4.3800, 2.4758, 16.7667)
Luminance	0.0248 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#271B74 #68741B

analogous

#1B3B74 #271B74 #531B74

triadic

#271B74 #74271B #1B7427

tetradic

#271B74 #741B3B #68741B #1B7453

square

#271B74 #741B3B #68741B #1B7453

split-complementary

#271B74 #74531B #3B741B

monochromatic

#080619 #160F42 #271B74 #3827A6 #4D39D1

Accessibility & contrast

On white

14.04

#271B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#271B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #271B74

14.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##271B74	#FFFFFF	#000000	##FFFFFF
##271B74	1.00	14.04	1.50	14.04
#FFFFFF	14.04	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F77

Deuteranopia (green-blind)

#002872

Tritanopia (blue-blind)

#003446

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #271b74;
/* rgb */ color: rgb(39, 27, 116);
/* oklch */ color: oklch(30.6% 0.143 279.8);

Tailwind

colors: {
  custom: {
    50: '#6c599d',
    500: '#271b74',
    950: '#000000',
  },
}

SCSS

$custom: #271b74;
$custom-light: #6c599d;
$custom-dark: #000000;

JSON

{
  "hex": "#271b74",
  "rgb": {
    "r": 39,
    "g": 27,
    "b": 116
  },
  "hsl": {
    "h": 248.09,
    "s": 62.238,
    "l": 28.039
  },
  "oklch": {
    "l": 0.30607,
    "c": 0.14325,
    "h": 279.8
  },
  "luminance": 0.02476
}

Semantic roles & 50–950 ramp

primary

#271B74

secondary

#9BA942

accent

#E542CF

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08030E

muted

#7A787E

Preview Lab

Preview with #271B74

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

Preview Lab → · Contrast checker → · Palette generator →