#1B1E97#1B1E97

#1B1E97 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.2% C 0.188 H 269.9°. Best body text is #FFFFFF at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#1B1E97
RGB	rgb(27, 30, 151)
HSL	hsl(239, 70%, 35%)
HSV	hsv(239, 82%, 59%)
CMYK	cmyk(82.1%, 80.1%, 0%, 40.8%)
CIE-LAB	lab(21.56, 42.57, -64.78)
CIE-LCH	lch(21.56, 77.51, 303.31°)
OKLab	oklab(34.21% -0.0003 -0.1876)
OKLCH	oklch(34.21% 0.188 269.9)
XYZ	xyz(6.5003, 3.3952, 29.5849)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1E97 #97941B

analogous

#1B5C97 #1B1E97 #561B97

triadic

#1B1E97 #971B1E #1E971B

tetradic

#1B1E97 #971B5C #97941B #1B9756

square

#1B1E97 #971B5C #97941B #1B9756

split-complementary

#1B1E97 #97561B #5C971B

monochromatic

#08092F #121463 #1B1E97 #2428CB #4D51DF

Accessibility & contrast

On white

12.51

#1B1E97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1B1E97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1E97

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1E97	#FFFFFF	#000000	##FFFFFF
##1B1E97	1.00	12.51	1.68	12.51
#FFFFFF	12.51	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A9A

Deuteranopia (green-blind)

#002D95

Tritanopia (blue-blind)

#00435A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b1e97;
/* rgb */ color: rgb(27, 30, 151);
/* oklch */ color: oklch(34.2% 0.188 269.9);

Tailwind

colors: {
  custom: {
    50: '#715cb7',
    500: '#1b1e97',
    950: '#000000',
  },
}

SCSS

$custom: #1b1e97;
$custom-light: #715cb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1e97",
  "rgb": {
    "r": 27,
    "g": 30,
    "b": 151
  },
  "hsl": {
    "h": 238.548,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.34208,
    "c": 0.18761,
    "h": 269.9
  },
  "luminance": 0.03396
}

Semantic roles & 50–950 ramp

primary

#1B1E97

secondary

#C1BF4C

accent

#E83BEC

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1B1E97

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

Preview Lab → · Contrast checker → · Palette generator →