#1B4097#1B4097

#1B4097 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.2% C 0.149 H 263.6°. Best body text is #FFFFFF at 9.43:1 contrast (WCAG AA passes).

Color values

HEX	#1B4097
RGB	rgb(27, 64, 151)
HSL	hsl(222, 70%, 35%)
HSV	hsv(222, 82%, 59%)
CMYK	cmyk(82.1%, 57.6%, 0%, 40.8%)
CIE-LAB	lab(29.75, 20.74, -51.33)
CIE-LCH	lch(29.75, 55.36, 292.00°)
OKLab	oklab(40.18% -0.0165 -0.1482)
OKLCH	oklch(40.18% 0.149 263.6)
XYZ	xyz(7.8693, 6.1332, 30.0412)
Luminance	0.0613 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4097 #97721B

analogous

#1B7E97 #1B4097 #341B97

triadic

#1B4097 #971B40 #40971B

tetradic

#1B4097 #971B7E #97721B #1B9734

square

#1B4097 #971B7E #97721B #1B9734

split-complementary

#1B4097 #97341B #7E971B

monochromatic

#08142F #122A63 #1B4097 #2456CB #4D79DF

Accessibility & contrast

On white

9.43

#1B4097 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#1B4097 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4097

9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4097	#FFFFFF	#000000	##FFFFFF
##1B4097	1.00	9.43	2.23	9.43
#FFFFFF	9.43	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9A

Deuteranopia (green-blind)

#004195

Tritanopia (blue-blind)

#005665

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1b4097;
/* rgb */ color: rgb(27, 64, 151);
/* oklch */ color: oklch(40.2% 0.149 263.6);

Tailwind

colors: {
  custom: {
    50: '#6d74b6',
    500: '#1b4097',
    950: '#000000',
  },
}

SCSS

$custom: #1b4097;
$custom-light: #6d74b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4097",
  "rgb": {
    "r": 27,
    "g": 64,
    "b": 151
  },
  "hsl": {
    "h": 222.097,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.40181,
    "c": 0.14916,
    "h": 263.6
  },
  "luminance": 0.06134
}

Semantic roles & 50–950 ramp

primary

#1B4097

secondary

#C19F4C

accent

#B83BEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1B4097

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

Preview Lab → · Contrast checker → · Palette generator →