#1B4A92#1B4A92

#1B4A92 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.0% C 0.129 H 259.0°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#1B4A92
RGB	rgb(27, 74, 146)
HSL	hsl(216, 69%, 34%)
HSV	hsv(216, 82%, 57%)
CMYK	cmyk(81.5%, 49.3%, 0%, 42.7%)
CIE-LAB	lab(32.27, 11.86, -44.19)
CIE-LCH	lch(32.27, 45.76, 285.02°)
OKLab	oklab(41.98% -0.0246 -0.127)
OKLCH	oklch(41.98% 0.129 259)
XYZ	xyz(8.0872, 7.2049, 28.1530)
Luminance	0.0721 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4A92 #92631B

analogous

#1B8692 #1B4A92 #281B92

triadic

#1B4A92 #921B4A #4A921B

tetradic

#1B4A92 #921B86 #92631B #1B9228

square

#1B4A92 #921B86 #92631B #1B9228

split-complementary

#1B4A92 #92281B #86921B

monochromatic

#08162B #11305E #1B4A92 #2564C6 #4A84DE

Accessibility & contrast

On white

8.60

#1B4A92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#1B4A92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4A92

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4A92	#FFFFFF	#000000	##FFFFFF
##1B4A92	1.00	8.60	2.44	8.60
#FFFFFF	8.60	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#215295

Deuteranopia (green-blind)

#004791

Tritanopia (blue-blind)

#005B67

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b4a92;
/* rgb */ color: rgb(27, 74, 146);
/* oklch */ color: oklch(42.0% 0.129 259.0);

Tailwind

colors: {
  custom: {
    50: '#6c7bb2',
    500: '#1b4a92',
    950: '#000000',
  },
}

SCSS

$custom: #1b4a92;
$custom-light: #6c7bb2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4a92",
  "rgb": {
    "r": 27,
    "g": 74,
    "b": 146
  },
  "hsl": {
    "h": 216.303,
    "s": 68.786,
    "l": 33.922
  },
  "oklch": {
    "l": 0.41983,
    "c": 0.12941,
    "h": 259
  },
  "luminance": 0.07206
}

Semantic roles & 50–950 ramp

primary

#1B4A92

secondary

#BF9149

accent

#A63CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4A92

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

Preview Lab → · Contrast checker → · Palette generator →