#1B1475#1B1475

#1B1475 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.8% C 0.154 H 274.0°. Best body text is #FFFFFF at 14.96:1 contrast (WCAG AA passes).

Color values

HEX	#1B1475
RGB	rgb(27, 20, 117)
HSL	hsl(244, 71%, 27%)
HSV	hsv(244, 83%, 46%)
CMYK	cmyk(76.9%, 82.9%, 0%, 54.1%)
CIE-LAB	lab(15.58, 36.52, -53.27)
CIE-LCH	lch(15.58, 64.59, 304.43°)
OKLab	oklab(28.83% 0.0107 -0.1541)
OKLCH	oklch(28.83% 0.154 274)
XYZ	xyz(3.9120, 2.0173, 17.0094)
Luminance	0.0202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1475 #6E7514

analogous

#143E75 #1B1475 #4C1475

triadic

#1B1475 #751B14 #14751B

tetradic

#1B1475 #75143E #6E7514 #14754C

square

#1B1475 #75143E #6E7514 #14754C

split-complementary

#1B1475 #754C14 #3E7514

monochromatic

#06041A #0F0B41 #1B1475 #271DA9 #3629DA

Accessibility & contrast

On white

14.96

#1B1475 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#1B1475 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1475

14.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1475	#FFFFFF	#000000	##FFFFFF
##1B1475	1.00	14.96	1.40	14.96
#FFFFFF	14.96	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B78

Deuteranopia (green-blind)

#002273

Tritanopia (blue-blind)

#003245

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1b1475;
/* rgb */ color: rgb(27, 20, 117);
/* oklch */ color: oklch(28.8% 0.154 274.0);

Tailwind

colors: {
  custom: {
    50: '#68549e',
    500: '#1b1475',
    950: '#000000',
  },
}

SCSS

$custom: #1b1475;
$custom-light: #68549e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1475",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 117
  },
  "hsl": {
    "h": 244.33,
    "s": 70.803,
    "l": 26.863
  },
  "oklch": {
    "l": 0.28825,
    "c": 0.15446,
    "h": 274
  },
  "luminance": 0.02018
}

Semantic roles & 50–950 ramp

primary

#1B1475

secondary

#A3AB3A

accent

#EE3AE1

background

#F6F5F9

surface

#ECE8F2

border

#C7C4CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1B1475

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

Preview Lab → · Contrast checker → · Palette generator →