#1B4A96#1B4A96

#1B4A96 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.3% C 0.135 H 259.8°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#1B4A96
RGB	rgb(27, 74, 150)
HSL	hsl(217, 69%, 35%)
HSV	hsv(217, 82%, 59%)
CMYK	cmyk(82%, 50.7%, 0%, 41.2%)
CIE-LAB	lab(32.55, 13.48, -46.17)
CIE-LCH	lch(32.55, 48.10, 286.28°)
OKLab	oklab(42.29% -0.024 -0.1329)
OKLCH	oklch(42.29% 0.135 259.8)
XYZ	xyz(8.4038, 7.3316, 29.8205)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4A96 #96671B

analogous

#1B8896 #1B4A96 #291B96

triadic

#1B4A96 #961B4A #4A961B

tetradic

#1B4A96 #961B88 #96671B #1B9629

square

#1B4A96 #961B88 #96671B #1B9629

split-complementary

#1B4A96 #96291B #88961B

monochromatic

#08172E #123062 #1B4A96 #2464CA #4D84DF

Accessibility & contrast

On white

8.51

#1B4A96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1B4A96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4A96

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4A96	#FFFFFF	#000000	##FFFFFF
##1B4A96	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B5299

Deuteranopia (green-blind)

#004794

Tritanopia (blue-blind)

#005C69

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b4a96;
/* rgb */ color: rgb(27, 74, 150);
/* oklch */ color: oklch(42.3% 0.135 259.8);

Tailwind

colors: {
  custom: {
    50: '#6d7bb5',
    500: '#1b4a96',
    950: '#000000',
  },
}

SCSS

$custom: #1b4a96;
$custom-light: #6d7bb5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4a96",
  "rgb": {
    "r": 27,
    "g": 74,
    "b": 150
  },
  "hsl": {
    "h": 217.073,
    "s": 69.492,
    "l": 34.706
  },
  "oklch": {
    "l": 0.42288,
    "c": 0.13503,
    "h": 259.8
  },
  "luminance": 0.07333
}

Semantic roles & 50–950 ramp

primary

#1B4A96

secondary

#C1944C

accent

#A93BEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4A96

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

Preview Lab → · Contrast checker → · Palette generator →