#1B4C96#1B4C96

#1B4C96 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 42.7% C 0.133 H 258.9°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#1B4C96
RGB	rgb(27, 76, 150)
HSL	hsl(216, 69%, 35%)
HSV	hsv(216, 82%, 59%)
CMYK	cmyk(82%, 49.3%, 0%, 41.2%)
CIE-LAB	lab(33.14, 12.12, -45.22)
CIE-LCH	lch(33.14, 46.82, 285.01°)
OKLab	oklab(42.74% -0.0256 -0.13)
OKLCH	oklch(42.74% 0.133 258.9)
XYZ	xyz(8.5394, 7.6029, 29.8657)
Luminance	0.0760 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4C96 #96651B

analogous

#1B8996 #1B4C96 #281B96

triadic

#1B4C96 #961B4C #4C961B

tetradic

#1B4C96 #961B89 #96651B #1B9628

square

#1B4C96 #961B89 #96651B #1B9628

split-complementary

#1B4C96 #96281B #89961B

monochromatic

#08172E #123262 #1B4C96 #2466CA #4D87DF

Accessibility & contrast

On white

8.33

#1B4C96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#1B4C96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4C96

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4C96	#FFFFFF	#000000	##FFFFFF
##1B4C96	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#215499

Deuteranopia (green-blind)

#004995

Tritanopia (blue-blind)

#005E6A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b4c96;
/* rgb */ color: rgb(27, 76, 150);
/* oklch */ color: oklch(42.7% 0.133 258.9);

Tailwind

colors: {
  custom: {
    50: '#6d7db5',
    500: '#1b4c96',
    950: '#000000',
  },
}

SCSS

$custom: #1b4c96;
$custom-light: #6d7db5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4c96",
  "rgb": {
    "r": 27,
    "g": 76,
    "b": 150
  },
  "hsl": {
    "h": 216.098,
    "s": 69.492,
    "l": 34.706
  },
  "oklch": {
    "l": 0.42742,
    "c": 0.13252,
    "h": 258.9
  },
  "luminance": 0.07604
}

Semantic roles & 50–950 ramp

primary

#1B4C96

secondary

#C1924C

accent

#A63BEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4C96

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

Preview Lab → · Contrast checker → · Palette generator →