#1B1680#1B1680

#1B1680 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.4% C 0.166 H 272.5°. Best body text is #FFFFFF at 14.26:1 contrast (WCAG AA passes).

Color values

HEX	#1B1680
RGB	rgb(27, 22, 128)
HSL	hsl(243, 71%, 29%)
HSV	hsv(243, 83%, 50%)
CMYK	cmyk(78.9%, 82.8%, 0%, 49.8%)
CIE-LAB	lab(17.30, 39.14, -57.46)
CIE-LCH	lch(17.30, 69.53, 304.26°)
OKLab	oklab(30.42% 0.0071 -0.1663)
OKLCH	oklch(30.42% 0.166 272.5)
XYZ	xyz(4.6339, 2.3648, 20.6301)
Luminance	0.0237 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1680 #7B8016

analogous

#164680 #1B1680 #501680

triadic

#1B1680 #801B16 #16801B

tetradic

#1B1680 #801646 #7B8016 #168050

square

#1B1680 #801646 #7B8016 #168050

split-complementary

#1B1680 #805016 #468016

monochromatic

#06041A #100D4C #1B1680 #261FB4 #3C34DC

Accessibility & contrast

On white

14.26

#1B1680 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#1B1680 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1680

14.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1680	#FFFFFF	#000000	##FFFFFF
##1B1680	1.00	14.26	1.47	14.26
#FFFFFF	14.26	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F83

Deuteranopia (green-blind)

#00257E

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1b1680;
/* rgb */ color: rgb(27, 22, 128);
/* oklch */ color: oklch(30.4% 0.166 272.5);

Tailwind

colors: {
  custom: {
    50: '#6b56a6',
    500: '#1b1680',
    950: '#000000',
  },
}

SCSS

$custom: #1b1680;
$custom-light: #6b56a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1680",
  "rgb": {
    "r": 27,
    "g": 22,
    "b": 128
  },
  "hsl": {
    "h": 242.83,
    "s": 70.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.30416,
    "c": 0.16644,
    "h": 272.5
  },
  "luminance": 0.02365
}

Semantic roles & 50–950 ramp

primary

#1B1680

secondary

#AFB53D

accent

#ED3AE5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1B1680

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

Preview Lab → · Contrast checker → · Palette generator →