#1B1A87#1B1A87

#1B1A87 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.172 H 271.4°. Best body text is #FFFFFF at 13.60:1 contrast (WCAG AA passes).

Color values

HEX	#1B1A87
RGB	rgb(27, 26, 135)
HSL	hsl(241, 68%, 32%)
HSV	hsv(241, 81%, 53%)
CMYK	cmyk(80%, 80.7%, 0%, 47.1%)
CIE-LAB	lab(18.89, 39.35, -59.25)
CIE-LCH	lch(18.89, 71.13, 303.59°)
OKLab	oklab(31.78% 0.0042 -0.1715)
OKLCH	oklch(31.78% 0.172 271.4)
XYZ	xyz(5.1931, 2.7205, 23.1684)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1A87 #86871A

analogous

#1A5087 #1B1A87 #521A87

triadic

#1B1A87 #871B1A #1A871B

tetradic

#1B1A87 #871A50 #86871A #1A8752

square

#1B1A87 #871A50 #86871A #1A8752

split-complementary

#1B1A87 #87521A #50871A

monochromatic

#060620 #111054 #1B1A87 #2524BA #4241DA

Accessibility & contrast

On white

13.60

#1B1A87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1B1A87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1A87

13.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1A87	#FFFFFF	#000000	##FFFFFF
##1B1A87	1.00	13.60	1.54	13.60
#FFFFFF	13.60	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338A

Deuteranopia (green-blind)

#002885

Tritanopia (blue-blind)

#003C50

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1b1a87;
/* rgb */ color: rgb(27, 26, 135);
/* oklch */ color: oklch(31.8% 0.172 271.4);

Tailwind

colors: {
  custom: {
    50: '#6d59ab',
    500: '#1b1a87',
    950: '#000000',
  },
}

SCSS

$custom: #1b1a87;
$custom-light: #6d59ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1a87",
  "rgb": {
    "r": 27,
    "g": 26,
    "b": 135
  },
  "hsl": {
    "h": 240.55,
    "s": 67.702,
    "l": 31.569
  },
  "oklch": {
    "l": 0.31776,
    "c": 0.17158,
    "h": 271.4
  },
  "luminance": 0.02721
}

Semantic roles & 50–950 ramp

primary

#1B1A87

secondary

#B9BA42

accent

#EB3DE9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1B1A87

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

Preview Lab → · Contrast checker → · Palette generator →