#1B1E87#1B1E87

#1B1E87 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.3% C 0.168 H 270.9°. Best body text is #FFFFFF at 13.27:1 contrast (WCAG AA passes).

Color values

HEX	#1B1E87
RGB	rgb(27, 30, 135)
HSL	hsl(238, 67%, 32%)
HSV	hsv(238, 80%, 53%)
CMYK	cmyk(80%, 77.8%, 0%, 47.1%)
CIE-LAB	lab(19.68, 37.08, -57.94)
CIE-LCH	lch(19.68, 68.79, 302.62°)
OKLab	oklab(32.33% 0.0028 -0.1678)
OKLCH	oklch(32.33% 0.168 270.9)
XYZ	xyz(5.2880, 2.9102, 23.2000)
Luminance	0.0291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1E87 #87841B

analogous

#1B5487 #1B1E87 #4E1B87

triadic

#1B1E87 #871B1E #1E871B

tetradic

#1B1E87 #871B54 #87841B #1B874E

square

#1B1E87 #871B54 #87841B #1B874E

split-complementary

#1B1E87 #874E1B #54871B

monochromatic

#070721 #111354 #1B1E87 #2529BA #4347D9

Accessibility & contrast

On white

13.27

#1B1E87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1B1E87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1E87

13.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1E87	#FFFFFF	#000000	##FFFFFF
##1B1E87	1.00	13.27	1.58	13.27
#FFFFFF	13.27	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358A

Deuteranopia (green-blind)

#002A85

Tritanopia (blue-blind)

#003D51

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b1e87;
/* rgb */ color: rgb(27, 30, 135);
/* oklch */ color: oklch(32.3% 0.168 270.9);

Tailwind

colors: {
  custom: {
    50: '#6c5bab',
    500: '#1b1e87',
    950: '#000000',
  },
}

SCSS

$custom: #1b1e87;
$custom-light: #6c5bab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1e87",
  "rgb": {
    "r": 27,
    "g": 30,
    "b": 135
  },
  "hsl": {
    "h": 238.333,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.32334,
    "c": 0.16779,
    "h": 270.9
  },
  "luminance": 0.02911
}

Semantic roles & 50–950 ramp

primary

#1B1E87

secondary

#BAB744

accent

#E53EEA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1B1E87

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

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