#1B1D89#1B1D89

#1B1D89 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.4% C 0.171 H 270.9°. Best body text is #FFFFFF at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#1B1D89
RGB	rgb(27, 29, 137)
HSL	hsl(239, 67%, 32%)
HSV	hsv(239, 80%, 54%)
CMYK	cmyk(80.3%, 78.8%, 0%, 46.3%)
CIE-LAB	lab(19.71, 38.36, -59.14)
CIE-LCH	lch(19.71, 70.49, 302.96°)
OKLab	oklab(32.42% 0.0028 -0.1713)
OKLCH	oklch(32.42% 0.171 270.9)
XYZ	xyz(5.4052, 2.9173, 23.9403)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1D89 #89871B

analogous

#1B5489 #1B1D89 #501B89

triadic

#1B1D89 #891B1D #1D891B

tetradic

#1B1D89 #891B54 #89871B #1B8950

square

#1B1D89 #891B54 #89871B #1B8950

split-complementary

#1B1D89 #89501B #54891B

monochromatic

#070723 #111256 #1B1D89 #2528BC #4447DA

Accessibility & contrast

On white

13.26

#1B1D89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1B1D89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1D89

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1D89	#FFFFFF	#000000	##FFFFFF
##1B1D89	1.00	13.26	1.58	13.26
#FFFFFF	13.26	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358C

Deuteranopia (green-blind)

#002A87

Tritanopia (blue-blind)

#003E52

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b1d89;
/* rgb */ color: rgb(27, 29, 137);
/* oklch */ color: oklch(32.4% 0.171 270.9);

Tailwind

colors: {
  custom: {
    50: '#6d5bad',
    500: '#1b1d89',
    950: '#000000',
  },
}

SCSS

$custom: #1b1d89;
$custom-light: #6d5bad;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1d89",
  "rgb": {
    "r": 27,
    "g": 29,
    "b": 137
  },
  "hsl": {
    "h": 238.909,
    "s": 67.073,
    "l": 32.157
  },
  "oklch": {
    "l": 0.32423,
    "c": 0.17128,
    "h": 270.9
  },
  "luminance": 0.02918
}

Semantic roles & 50–950 ramp

primary

#1B1D89

secondary

#BCB944

accent

#E73EEA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1B1D89

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

Preview Lab → · Contrast checker → · Palette generator →