#1B2D82#1B2D82

#1B2D82 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.4% C 0.144 H 268.2°. Best body text is #FFFFFF at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#1B2D82
RGB	rgb(27, 45, 130)
HSL	hsl(230, 66%, 31%)
HSV	hsv(230, 79%, 51%)
CMYK	cmyk(79.2%, 65.4%, 0%, 49%)
CIE-LAB	lab(22.73, 25.51, -49.78)
CIE-LCH	lch(22.73, 55.93, 297.13°)
OKLab	oklab(34.38% -0.0044 -0.144)
OKLCH	oklch(34.38% 0.144 268.2)
XYZ	xyz(5.4182, 3.7209, 21.5474)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2D82 #82701B

analogous

#1B6082 #1B2D82 #3D1B82

triadic

#1B2D82 #821B2D #2D821B

tetradic

#1B2D82 #821B60 #82701B #1B823D

square

#1B2D82 #821B60 #82701B #1B823D

split-complementary

#1B2D82 #823D1B #60821B

monochromatic

#060A1D #101B4F #1B2D82 #263FB5 #405AD7

Accessibility & contrast

On white

12.04

#1B2D82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1B2D82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2D82

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2D82	#FFFFFF	#000000	##FFFFFF
##1B2D82	1.00	12.04	1.74	12.04
#FFFFFF	12.04	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B85

Deuteranopia (green-blind)

#003180

Tritanopia (blue-blind)

#004353

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1b2d82;
/* rgb */ color: rgb(27, 45, 130);
/* oklch */ color: oklch(34.4% 0.144 268.2);

Tailwind

colors: {
  custom: {
    50: '#6965a7',
    500: '#1b2d82',
    950: '#000000',
  },
}

SCSS

$custom: #1b2d82;
$custom-light: #6965a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2d82",
  "rgb": {
    "r": 27,
    "g": 45,
    "b": 130
  },
  "hsl": {
    "h": 229.515,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.3438,
    "c": 0.14404,
    "h": 268.2
  },
  "luminance": 0.03721
}

Semantic roles & 50–950 ramp

primary

#1B2D82

secondary

#B6A243

accent

#CB3FE9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070510

muted

#7A7A7F

Preview Lab

Preview with #1B2D82

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

Preview Lab → · Contrast checker → · Palette generator →