#1B1C86#1B1C86

#1B1C86 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.9% C 0.168 H 271.3°. Best body text is #FFFFFF at 13.49:1 contrast (WCAG AA passes).

Color values

HEX	#1B1C86
RGB	rgb(27, 28, 134)
HSL	hsl(239, 66%, 32%)
HSV	hsv(239, 80%, 53%)
CMYK	cmyk(79.9%, 79.1%, 0%, 47.5%)
CIE-LAB	lab(19.16, 37.89, -58.17)
CIE-LCH	lch(19.16, 69.42, 303.08°)
OKLab	oklab(31.93% 0.0037 -0.1684)
OKLCH	oklch(31.93% 0.168 271.3)
XYZ	xyz(5.1689, 2.7842, 22.8146)
Luminance	0.0278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1C86 #86851B

analogous

#1B5286 #1B1C86 #501B86

triadic

#1B1C86 #861B1C #1C861B

tetradic

#1B1C86 #861B52 #86851B #1B8650

square

#1B1C86 #861B52 #86851B #1B8650

split-complementary

#1B1C86 #86501B #52861B

monochromatic

#060720 #111153 #1B1C86 #2527B9 #4244D9

Accessibility & contrast

On white

13.49

#1B1C86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1B1C86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1C86

13.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1C86	#FFFFFF	#000000	##FFFFFF
##1B1C86	1.00	13.49	1.56	13.49
#FFFFFF	13.49	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003489

Deuteranopia (green-blind)

#002984

Tritanopia (blue-blind)

#003C50

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1b1c86;
/* rgb */ color: rgb(27, 28, 134);
/* oklch */ color: oklch(31.9% 0.168 271.3);

Tailwind

colors: {
  custom: {
    50: '#6c5aaa',
    500: '#1b1c86',
    950: '#000000',
  },
}

SCSS

$custom: #1b1c86;
$custom-light: #6c5aaa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1c86",
  "rgb": {
    "r": 27,
    "g": 28,
    "b": 134
  },
  "hsl": {
    "h": 239.439,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.31931,
    "c": 0.16847,
    "h": 271.3
  },
  "luminance": 0.02785
}

Semantic roles & 50–950 ramp

primary

#1B1C86

secondary

#B9B844

accent

#E83EE9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1B1C86

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

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