#1B4792#1B4792

#1B4792 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.3% C 0.133 H 260.4°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#1B4792
RGB	rgb(27, 71, 146)
HSL	hsl(218, 69%, 34%)
HSV	hsv(218, 82%, 57%)
CMYK	cmyk(81.5%, 51.4%, 0%, 42.7%)
CIE-LAB	lab(31.38, 13.91, -45.63)
CIE-LCH	lch(31.38, 47.70, 286.95°)
OKLab	oklab(41.3% -0.0222 -0.1313)
OKLCH	oklch(41.3% 0.133 260.4)
XYZ	xyz(7.8917, 6.8139, 28.0878)
Luminance	0.0682 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4792 #92661B

analogous

#1B8392 #1B4792 #2B1B92

triadic

#1B4792 #921B47 #47921B

tetradic

#1B4792 #921B83 #92661B #1B922B

square

#1B4792 #921B83 #92661B #1B922B

split-complementary

#1B4792 #922B1B #83921B

monochromatic

#08152B #112E5E #1B4792 #2560C6 #4A80DE

Accessibility & contrast

On white

8.89

#1B4792 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#1B4792 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4792

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4792	#FFFFFF	#000000	##FFFFFF
##1B4792	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#185095

Deuteranopia (green-blind)

#004591

Tritanopia (blue-blind)

#005965

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b4792;
/* rgb */ color: rgb(27, 71, 146);
/* oklch */ color: oklch(41.3% 0.133 260.4);

Tailwind

colors: {
  custom: {
    50: '#6c79b2',
    500: '#1b4792',
    950: '#000000',
  },
}

SCSS

$custom: #1b4792;
$custom-light: #6c79b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4792",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 146
  },
  "hsl": {
    "h": 217.815,
    "s": 68.786,
    "l": 33.922
  },
  "oklch": {
    "l": 0.41301,
    "c": 0.13319,
    "h": 260.4
  },
  "luminance": 0.06815
}

Semantic roles & 50–950 ramp

primary

#1B4792

secondary

#BF9449

accent

#AB3CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4792

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

Preview Lab → · Contrast checker → · Palette generator →