#1B1A97#1B1A97

#1B1A97 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.7% C 0.191 H 270.2°. Best body text is #FFFFFF at 12.80:1 contrast (WCAG AA passes).

Color values

HEX	#1B1A97
RGB	rgb(27, 26, 151)
HSL	hsl(240, 71%, 35%)
HSV	hsv(240, 83%, 59%)
CMYK	cmyk(82.1%, 82.8%, 0%, 40.8%)
CIE-LAB	lab(20.85, 44.64, -65.96)
CIE-LCH	lch(20.85, 79.65, 304.09°)
OKLab	oklab(33.71% 0.0007 -0.191)
OKLCH	oklch(33.71% 0.191 270.2)
XYZ	xyz(6.4054, 3.2054, 29.5533)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1A97 #96971A

analogous

#1A5897 #1B1A97 #5A1A97

triadic

#1B1A97 #971B1A #1A971B

tetradic

#1B1A97 #971A58 #96971A #1A975A

square

#1B1A97 #971A58 #96971A #1A975A

split-complementary

#1B1A97 #975A1A #58971A

monochromatic

#08082F #121163 #1B1A97 #2423CB #4D4BE0

Accessibility & contrast

On white

12.80

#1B1A97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1B1A97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1A97

12.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1A97	#FFFFFF	#000000	##FFFFFF
##1B1A97	1.00	12.80	1.64	12.80
#FFFFFF	12.80	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00389A

Deuteranopia (green-blind)

#002C95

Tritanopia (blue-blind)

#00425A

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1b1a97;
/* rgb */ color: rgb(27, 26, 151);
/* oklch */ color: oklch(33.7% 0.191 270.2);

Tailwind

colors: {
  custom: {
    50: '#715ab7',
    500: '#1b1a97',
    950: '#000000',
  },
}

SCSS

$custom: #1b1a97;
$custom-light: #715ab7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1a97",
  "rgb": {
    "r": 27,
    "g": 26,
    "b": 151
  },
  "hsl": {
    "h": 240.48,
    "s": 70.621,
    "l": 34.706
  },
  "oklch": {
    "l": 0.3371,
    "c": 0.19096,
    "h": 270.2
  },
  "luminance": 0.03206
}

Semantic roles & 50–950 ramp

primary

#1B1A97

secondary

#C1C24B

accent

#ED3AEC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1B1A97

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

Preview Lab → · Contrast checker → · Palette generator →