#1B4482#1B4482

#1B4482 is a dark, moderate blue. Relative luminance 0.060; OKLCH L 39.4% C 0.114 H 258.7°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#1B4482
RGB	rgb(27, 68, 130)
HSL	hsl(216, 66%, 31%)
HSV	hsv(216, 79%, 51%)
CMYK	cmyk(79.2%, 47.7%, 0%, 49%)
CIE-LAB	lab(29.36, 9.45, -39.02)
CIE-LCH	lch(29.36, 40.15, 283.62°)
OKLab	oklab(39.39% -0.0223 -0.1119)
OKLCH	oklch(39.39% 0.114 258.7)
XYZ	xyz(6.5469, 5.9782, 21.9236)
Luminance	0.0598 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4482 #82591B

analogous

#1B7782 #1B4482 #261B82

triadic

#1B4482 #821B44 #44821B

tetradic

#1B4482 #821B77 #82591B #1B8226

square

#1B4482 #821B77 #82591B #1B8226

split-complementary

#1B4482 #82261B #77821B

monochromatic

#060F1D #10294F #1B4482 #265FB5 #407CD7

Accessibility & contrast

On white

9.56

#1B4482 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#1B4482 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4482

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4482	#FFFFFF	#000000	##FFFFFF
##1B4482	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234A84

Deuteranopia (green-blind)

#0A4181

Tritanopia (blue-blind)

#00535C

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1b4482;
/* rgb */ color: rgb(27, 68, 130);
/* oklch */ color: oklch(39.4% 0.114 258.7);

Tailwind

colors: {
  custom: {
    50: '#6877a7',
    500: '#1b4482',
    950: '#000000',
  },
}

SCSS

$custom: #1b4482;
$custom-light: #6877a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4482",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 130
  },
  "hsl": {
    "h": 216.117,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.39389,
    "c": 0.11415,
    "h": 258.7
  },
  "luminance": 0.05979
}

Semantic roles & 50–950 ramp

primary

#1B4482

secondary

#B68843

accent

#A53FE9

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1B4482

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

Preview Lab → · Contrast checker → · Palette generator →