#1B2982#1B2982

#1B2982 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.6% C 0.149 H 269.3°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#1B2982
RGB	rgb(27, 41, 130)
HSL	hsl(232, 66%, 31%)
HSV	hsv(232, 79%, 51%)
CMYK	cmyk(79.2%, 68.5%, 0%, 49%)
CIE-LAB	lab(21.69, 28.24, -51.48)
CIE-LCH	lch(21.69, 58.72, 298.75°)
OKLab	oklab(33.62% -0.0019 -0.149)
OKLCH	oklch(33.62% 0.149 269.3)
XYZ	xyz(5.2728, 3.4300, 21.4989)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2982 #82741B

analogous

#1B5C82 #1B2982 #401B82

triadic

#1B2982 #821B29 #29821B

tetradic

#1B2982 #821B5C #82741B #1B8240

square

#1B2982 #821B5C #82741B #1B8240

split-complementary

#1B2982 #82401B #5C821B

monochromatic

#06091D #10194F #1B2982 #2639B5 #4055D7

Accessibility & contrast

On white

12.45

#1B2982 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1B2982 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2982

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2982	#FFFFFF	#000000	##FFFFFF
##1B2982	1.00	12.45	1.69	12.45
#FFFFFF	12.45	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003985

Deuteranopia (green-blind)

#002F80

Tritanopia (blue-blind)

#004151

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b2982;
/* rgb */ color: rgb(27, 41, 130);
/* oklch */ color: oklch(33.6% 0.149 269.3);

Tailwind

colors: {
  custom: {
    50: '#6a62a7',
    500: '#1b2982',
    950: '#000000',
  },
}

SCSS

$custom: #1b2982;
$custom-light: #6a62a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2982",
  "rgb": {
    "r": 27,
    "g": 41,
    "b": 130
  },
  "hsl": {
    "h": 231.845,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.3362,
    "c": 0.14899,
    "h": 269.3
  },
  "luminance": 0.03431
}

Semantic roles & 50–950 ramp

primary

#1B2982

secondary

#B6A643

accent

#D23FE9

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#070510

muted

#7A797F

Preview Lab

Preview with #1B2982

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

Preview Lab → · Contrast checker → · Palette generator →