#1B1480#1B1480

#1B1480 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.2% C 0.168 H 272.7°. Best body text is #FFFFFF at 14.40:1 contrast (WCAG AA passes).

Color values

HEX	#1B1480
RGB	rgb(27, 20, 128)
HSL	hsl(244, 73%, 29%)
HSV	hsv(244, 84%, 50%)
CMYK	cmyk(78.9%, 84.4%, 0%, 49.8%)
CIE-LAB	lab(16.95, 40.16, -58.04)
CIE-LCH	lch(16.95, 70.58, 304.68°)
OKLab	oklab(30.17% 0.0078 -0.1679)
OKLCH	oklch(30.17% 0.168 272.7)
XYZ	xyz(4.5971, 2.2913, 20.6179)
Luminance	0.0229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1480 #798014

analogous

#144380 #1B1480 #511480

triadic

#1B1480 #801B14 #14801B

tetradic

#1B1480 #801443 #798014 #148051

square

#1B1480 #801443 #798014 #148051

split-complementary

#1B1480 #805114 #438014

monochromatic

#06041A #100C4B #1B1480 #261CB5 #3B30DF

Accessibility & contrast

On white

14.40

#1B1480 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1B1480 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1480

14.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1480	#FFFFFF	#000000	##FFFFFF
##1B1480	1.00	14.40	1.46	14.40
#FFFFFF	14.40	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F83

Deuteranopia (green-blind)

#00247E

Tritanopia (blue-blind)

#00364B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1b1480;
/* rgb */ color: rgb(27, 20, 128);
/* oklch */ color: oklch(30.2% 0.168 272.7);

Tailwind

colors: {
  custom: {
    50: '#6b55a6',
    500: '#1b1480',
    950: '#000000',
  },
}

SCSS

$custom: #1b1480;
$custom-light: #6b55a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1480",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 128
  },
  "hsl": {
    "h": 243.889,
    "s": 72.973,
    "l": 29.02
  },
  "oklch": {
    "l": 0.30174,
    "c": 0.16811,
    "h": 272.7
  },
  "luminance": 0.02292
}

Semantic roles & 50–950 ramp

primary

#1B1480

secondary

#ADB53B

accent

#F038E4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1B1480

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

Preview Lab → · Contrast checker → · Palette generator →