#1B1E88#1B1E88

#1B1E88 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.169 H 270.9°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#1B1E88
RGB	rgb(27, 30, 136)
HSL	hsl(238, 67%, 32%)
HSV	hsv(238, 80%, 53%)
CMYK	cmyk(80.1%, 77.9%, 0%, 46.7%)
CIE-LAB	lab(19.80, 37.43, -58.37)
CIE-LCH	lch(19.80, 69.34, 302.67°)
OKLab	oklab(32.45% 0.0026 -0.169)
OKLCH	oklch(32.45% 0.169 270.9)
XYZ	xyz(5.3587, 2.9385, 23.5726)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1E88 #88851B

analogous

#1B5488 #1B1E88 #4F1B88

triadic

#1B1E88 #881B1E #1E881B

tetradic

#1B1E88 #881B54 #88851B #1B884F

square

#1B1E88 #881B54 #88851B #1B884F

split-complementary

#1B1E88 #884F1B #54881B

monochromatic

#070722 #111355 #1B1E88 #2529BB #4448DA

Accessibility & contrast

On white

13.23

#1B1E88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1B1E88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1E88

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1E88	#FFFFFF	#000000	##FFFFFF
##1B1E88	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358B

Deuteranopia (green-blind)

#002A86

Tritanopia (blue-blind)

#003E52

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b1e88;
/* rgb */ color: rgb(27, 30, 136);
/* oklch */ color: oklch(32.5% 0.169 270.9);

Tailwind

colors: {
  custom: {
    50: '#6d5bac',
    500: '#1b1e88',
    950: '#000000',
  },
}

SCSS

$custom: #1b1e88;
$custom-light: #6d5bac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1e88",
  "rgb": {
    "r": 27,
    "g": 30,
    "b": 136
  },
  "hsl": {
    "h": 238.349,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.3245,
    "c": 0.16906,
    "h": 270.9
  },
  "luminance": 0.02939
}

Semantic roles & 50–950 ramp

primary

#1B1E88

secondary

#BBB844

accent

#E53EEA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1B1E88

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

Preview Lab → · Contrast checker → · Palette generator →