#1A1B83#1A1B83

#1A1B83 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.4% C 0.166 H 271.2°. Best body text is #FFFFFF at 13.74:1 contrast (WCAG AA passes).

Color values

HEX	#1A1B83
RGB	rgb(26, 27, 131)
HSL	hsl(239, 67%, 31%)
HSV	hsv(239, 80%, 51%)
CMYK	cmyk(80.2%, 79.4%, 0%, 48.6%)
CIE-LAB	lab(18.55, 37.35, -57.29)
CIE-LCH	lch(18.55, 68.39, 303.10°)
OKLab	oklab(31.38% 0.0035 -0.1659)
OKLCH	oklch(31.38% 0.166 271.2)
XYZ	xyz(4.9133, 2.6416, 21.7193)
Luminance	0.0264 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A1B83 #83821A

analogous

#1A4F83 #1A1B83 #4D1A83

triadic

#1A1B83 #831A1B #1B831A

tetradic

#1A1B83 #831A4F #83821A #1A834D

square

#1A1B83 #831A4F #83821A #1A834D

split-complementary

#1A1B83 #834D1A #4F831A

monochromatic

#06061D #101050 #1A1B83 #2426B6 #3F40D9

Accessibility & contrast

On white

13.74

#1A1B83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1A1B83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A1B83

13.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A1B83	#FFFFFF	#000000	##FFFFFF
##1A1B83	1.00	13.74	1.53	13.74
#FFFFFF	13.74	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003286

Deuteranopia (green-blind)

#002881

Tritanopia (blue-blind)

#003A4E

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1a1b83;
/* rgb */ color: rgb(26, 27, 131);
/* oklch */ color: oklch(31.4% 0.166 271.2);

Tailwind

colors: {
  custom: {
    50: '#6b59a8',
    500: '#1a1b83',
    950: '#000000',
  },
}

SCSS

$custom: #1a1b83;
$custom-light: #6b59a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1a1b83",
  "rgb": {
    "r": 26,
    "g": 27,
    "b": 131
  },
  "hsl": {
    "h": 239.429,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31382,
    "c": 0.16593,
    "h": 271.2
  },
  "luminance": 0.02642
}

Semantic roles & 50–950 ramp

primary

#1A1B83

secondary

#B7B642

accent

#E83EEA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1A1B83

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

Preview Lab → · Contrast checker → · Palette generator →