#1B1065#1B1065

#1B1065 is a dark, vivid blue. Relative luminance 0.015; OKLCH L 26.4% C 0.138 H 277.1°. Best body text is #FFFFFF at 16.05:1 contrast (WCAG AA passes).

Color values

HEX	#1B1065
RGB	rgb(27, 16, 101)
HSL	hsl(248, 73%, 23%)
HSV	hsv(248, 84%, 40%)
CMYK	cmyk(73.3%, 84.2%, 0%, 60.4%)
CIE-LAB	lab(12.88, 33.28, -47.28)
CIE-LCH	lch(12.88, 57.82, 305.14°)
OKLab	oklab(26.37% 0.017 -0.1366)
OKLCH	oklch(26.37% 0.138 277.1)
XYZ	xyz(2.9855, 1.5429, 12.4499)
Luminance	0.0154 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1065 #5A6510

analogous

#102F65 #1B1065 #451065

triadic

#1B1065 #651B10 #10651B

tetradic

#1B1065 #65102F #5A6510 #106545

square

#1B1065 #65102F #5A6510 #106545

split-complementary

#1B1065 #654510 #2F6510

monochromatic

#07041A #0D0830 #1B1065 #29189A #3721CF

Accessibility & contrast

On white

16.05

#1B1065 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#1B1065 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1065

16.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1065	#FFFFFF	#000000	##FFFFFF
##1B1065	1.00	16.05	1.31	16.05
#FFFFFF	16.05	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002567

Deuteranopia (green-blind)

#001E64

Tritanopia (blue-blind)

#002A3B

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #1b1065;
/* rgb */ color: rgb(27, 16, 101);
/* oklch */ color: oklch(26.4% 0.138 277.1);

Tailwind

colors: {
  custom: {
    50: '#655192',
    500: '#1b1065',
    950: '#000000',
  },
}

SCSS

$custom: #1b1065;
$custom-light: #655192;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1065",
  "rgb": {
    "r": 27,
    "g": 16,
    "b": 101
  },
  "hsl": {
    "h": 247.765,
    "s": 72.65,
    "l": 22.941
  },
  "oklch": {
    "l": 0.26372,
    "c": 0.13769,
    "h": 277.1
  },
  "luminance": 0.01543
}

Semantic roles & 50–950 ramp

primary

#1B1065

secondary

#909D33

accent

#EF38D8

background

#F6F4F9

surface

#EBE7F1

border

#C6C3CB

text

#06020D

muted

#7A787E

Preview Lab

Preview with #1B1065

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

Preview Lab → · Contrast checker → · Palette generator →