#1B2782#1B2782

#1B2782 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.3% C 0.151 H 269.7°. Best body text is #FFFFFF at 12.66:1 contrast (WCAG AA passes).

Color values

HEX	#1B2782
RGB	rgb(27, 39, 130)
HSL	hsl(233, 66%, 31%)
HSV	hsv(233, 79%, 51%)
CMYK	cmyk(79.2%, 70%, 0%, 49%)
CIE-LAB	lab(21.19, 29.58, -52.30)
CIE-LCH	lch(21.19, 60.09, 299.49°)
OKLab	oklab(33.26% -0.0008 -0.1514)
OKLCH	oklch(33.26% 0.151 269.7)
XYZ	xyz(5.2054, 3.2952, 21.4765)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2782 #82761B

analogous

#1B5A82 #1B2782 #421B82

triadic

#1B2782 #821B27 #27821B

tetradic

#1B2782 #821B5A #82761B #1B8242

square

#1B2782 #821B5A #82761B #1B8242

split-complementary

#1B2782 #82421B #5A821B

monochromatic

#06091D #10184F #1B2782 #2636B5 #4052D7

Accessibility & contrast

On white

12.66

#1B2782 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#1B2782 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2782

12.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2782	#FFFFFF	#000000	##FFFFFF
##1B2782	1.00	12.66	1.66	12.66
#FFFFFF	12.66	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003885

Deuteranopia (green-blind)

#002E80

Tritanopia (blue-blind)

#004051

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1b2782;
/* rgb */ color: rgb(27, 39, 130);
/* oklch */ color: oklch(33.3% 0.151 269.7);

Tailwind

colors: {
  custom: {
    50: '#6a61a7',
    500: '#1b2782',
    950: '#000000',
  },
}

SCSS

$custom: #1b2782;
$custom-light: #6a61a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2782",
  "rgb": {
    "r": 27,
    "g": 39,
    "b": 130
  },
  "hsl": {
    "h": 233.01,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.33255,
    "c": 0.15139,
    "h": 269.7
  },
  "luminance": 0.03296
}

Semantic roles & 50–950 ramp

primary

#1B2782

secondary

#B6A843

accent

#D53FE9

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080510

muted

#7A797F

Preview Lab

Preview with #1B2782

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

Preview Lab → · Contrast checker → · Palette generator →