#1B3892#1B3892

#1B3892 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.1% C 0.152 H 265.7°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#1B3892
RGB	rgb(27, 56, 146)
HSL	hsl(225, 69%, 34%)
HSV	hsv(225, 82%, 57%)
CMYK	cmyk(81.5%, 61.6%, 0%, 42.7%)
CIE-LAB	lab(27.12, 24.25, -52.55)
CIE-LCH	lch(27.12, 57.88, 294.77°)
OKLab	oklab(38.08% -0.0115 -0.1519)
OKLCH	oklch(38.08% 0.152 265.7)
XYZ	xyz(7.0526, 5.1359, 27.8082)
Luminance	0.0514 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3892 #92751B

analogous

#1B7492 #1B3892 #3A1B92

triadic

#1B3892 #921B38 #38921B

tetradic

#1B3892 #921B74 #92751B #1B923A

square

#1B3892 #921B74 #92751B #1B923A

split-complementary

#1B3892 #923A1B #74921B

monochromatic

#08102B #11245E #1B3892 #254CC6 #4A6EDE

Accessibility & contrast

On white

10.36

#1B3892 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#1B3892 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3892

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3892	#FFFFFF	#000000	##FFFFFF
##1B3892	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004695

Deuteranopia (green-blind)

#003B90

Tritanopia (blue-blind)

#004F5F

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1b3892;
/* rgb */ color: rgb(27, 56, 146);
/* oklch */ color: oklch(38.1% 0.152 265.7);

Tailwind

colors: {
  custom: {
    50: '#6d6eb3',
    500: '#1b3892',
    950: '#000000',
  },
}

SCSS

$custom: #1b3892;
$custom-light: #6d6eb3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3892",
  "rgb": {
    "r": 27,
    "g": 56,
    "b": 146
  },
  "hsl": {
    "h": 225.378,
    "s": 68.786,
    "l": 33.922
  },
  "oklch": {
    "l": 0.38081,
    "c": 0.15239,
    "h": 265.7
  },
  "luminance": 0.05137
}

Semantic roles & 50–950 ramp

primary

#1B3892

secondary

#BFA349

accent

#C13CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1B3892

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

Preview Lab → · Contrast checker → · Palette generator →