#1B1986#1B1986

#1B1986 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.5% C 0.171 H 271.6°. Best body text is #FFFFFF at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#1B1986
RGB	rgb(27, 25, 134)
HSL	hsl(241, 69%, 31%)
HSV	hsv(241, 81%, 53%)
CMYK	cmyk(79.9%, 81.3%, 0%, 47.5%)
CIE-LAB	lab(18.58, 39.56, -59.13)
CIE-LCH	lch(18.58, 71.14, 303.78°)
OKLab	oklab(31.53% 0.0047 -0.1712)
OKLCH	oklch(31.53% 0.171 271.6)
XYZ	xyz(5.1012, 2.6489, 22.7921)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1986 #848619

analogous

#194D86 #1B1986 #511986

triadic

#1B1986 #861B19 #19861B

tetradic

#1B1986 #86194D #848619 #198651

square

#1B1986 #86194D #848619 #198651

split-complementary

#1B1986 #865119 #4D8619

monochromatic

#06061F #110F52 #1B1986 #2523BA #413EDB

Accessibility & contrast

On white

13.73

#1B1986 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1B1986 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1986

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1986	#FFFFFF	#000000	##FFFFFF
##1B1986	1.00	13.73	1.53	13.73
#FFFFFF	13.73	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003389

Deuteranopia (green-blind)

#002884

Tritanopia (blue-blind)

#003B50

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1b1986;
/* rgb */ color: rgb(27, 25, 134);
/* oklch */ color: oklch(31.5% 0.171 271.6);

Tailwind

colors: {
  custom: {
    50: '#6d58aa',
    500: '#1b1986',
    950: '#000000',
  },
}

SCSS

$custom: #1b1986;
$custom-light: #6d58aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1986",
  "rgb": {
    "r": 27,
    "g": 25,
    "b": 134
  },
  "hsl": {
    "h": 241.101,
    "s": 68.553,
    "l": 31.176
  },
  "oklch": {
    "l": 0.31525,
    "c": 0.17124,
    "h": 271.6
  },
  "luminance": 0.0265
}

Semantic roles & 50–950 ramp

primary

#1B1986

secondary

#B7BA41

accent

#EB3CE8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1B1986

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

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