#1B4082#1B4082

#1B4082 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.5% C 0.119 H 260.9°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#1B4082
RGB	rgb(27, 64, 130)
HSL	hsl(218, 66%, 31%)
HSV	hsv(218, 79%, 51%)
CMYK	cmyk(79.2%, 50.8%, 0%, 49%)
CIE-LAB	lab(28.14, 12.22, -40.98)
CIE-LCH	lch(28.14, 42.76, 286.61°)
OKLab	oklab(38.46% -0.0188 -0.1178)
OKLCH	oklch(38.46% 0.119 260.9)
XYZ	xyz(6.3132, 5.5108, 21.8457)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4082 #825D1B

analogous

#1B7382 #1B4082 #2A1B82

triadic

#1B4082 #821B40 #40821B

tetradic

#1B4082 #821B73 #825D1B #1B822A

square

#1B4082 #821B73 #825D1B #1B822A

split-complementary

#1B4082 #822A1B #73821B

monochromatic

#060E1D #10274F #1B4082 #2659B5 #4076D7

Accessibility & contrast

On white

9.99

#1B4082 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1B4082 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4082

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4082	#FFFFFF	#000000	##FFFFFF
##1B4082	1.00	9.99	2.10	9.99
#FFFFFF	9.99	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194784

Deuteranopia (green-blind)

#003E81

Tritanopia (blue-blind)

#00505A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1b4082;
/* rgb */ color: rgb(27, 64, 130);
/* oklch */ color: oklch(38.5% 0.119 260.9);

Tailwind

colors: {
  custom: {
    50: '#6874a7',
    500: '#1b4082',
    950: '#000000',
  },
}

SCSS

$custom: #1b4082;
$custom-light: #6874a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4082",
  "rgb": {
    "r": 27,
    "g": 64,
    "b": 130
  },
  "hsl": {
    "h": 218.447,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.38456,
    "c": 0.11928,
    "h": 260.9
  },
  "luminance": 0.05512
}

Semantic roles & 50–950 ramp

primary

#1B4082

secondary

#B68C43

accent

#AC3FE9

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1B4082

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

Preview Lab → · Contrast checker → · Palette generator →