#1B4793#1B4793

#1B4793 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.4% C 0.135 H 260.6°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#1B4793
RGB	rgb(27, 71, 147)
HSL	hsl(218, 69%, 34%)
HSV	hsv(218, 82%, 58%)
CMYK	cmyk(81.6%, 51.7%, 0%, 42.4%)
CIE-LAB	lab(31.45, 14.31, -46.12)
CIE-LCH	lch(31.45, 48.29, 287.24°)
OKLab	oklab(41.38% -0.0221 -0.1328)
OKLCH	oklch(41.38% 0.135 260.6)
XYZ	xyz(7.9698, 6.8451, 28.4993)
Luminance	0.0685 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4793 #93671B

analogous

#1B8393 #1B4793 #2B1B93

triadic

#1B4793 #931B47 #47931B

tetradic

#1B4793 #931B83 #93671B #1B932B

square

#1B4793 #931B83 #93671B #1B932B

split-complementary

#1B4793 #932B1B #83931B

monochromatic

#08152C #122E5F #1B4793 #2460C7 #4B81DE

Accessibility & contrast

On white

8.86

#1B4793 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1B4793 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4793

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4793	#FFFFFF	#000000	##FFFFFF
##1B4793	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#165096

Deuteranopia (green-blind)

#004591

Tritanopia (blue-blind)

#005966

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b4793;
/* rgb */ color: rgb(27, 71, 147);
/* oklch */ color: oklch(41.4% 0.135 260.6);

Tailwind

colors: {
  custom: {
    50: '#6c79b3',
    500: '#1b4793',
    950: '#000000',
  },
}

SCSS

$custom: #1b4793;
$custom-light: #6c79b3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4793",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 147
  },
  "hsl": {
    "h": 218,
    "s": 68.966,
    "l": 34.118
  },
  "oklch": {
    "l": 0.41379,
    "c": 0.13461,
    "h": 260.6
  },
  "luminance": 0.06846
}

Semantic roles & 50–950 ramp

primary

#1B4793

secondary

#C0954A

accent

#AB3CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4793

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

Preview Lab → · Contrast checker → · Palette generator →