#1B4E97#1B4E97

#1B4E97 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.3% C 0.131 H 258.1°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E97
RGB	rgb(27, 78, 151)
HSL	hsl(215, 70%, 35%)
HSV	hsv(215, 82%, 59%)
CMYK	cmyk(82.1%, 48.3%, 0%, 40.8%)
CIE-LAB	lab(33.81, 11.18, -44.76)
CIE-LCH	lch(33.81, 46.13, 284.02°)
OKLab	oklab(43.28% -0.027 -0.1286)
OKLCH	oklch(43.28% 0.131 258.1)
XYZ	xyz(8.7602, 7.9151, 30.3382)
Luminance	0.0792 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E97 #97641B

analogous

#1B8C97 #1B4E97 #261B97

triadic

#1B4E97 #971B4E #4E971B

tetradic

#1B4E97 #971B8C #97641B #1B9726

square

#1B4E97 #971B8C #97641B #1B9726

split-complementary

#1B4E97 #97261B #8C971B

monochromatic

#08182F #123363 #1B4E97 #2469CB #4D89DF

Accessibility & contrast

On white

8.13

#1B4E97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1B4E97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E97

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E97	#FFFFFF	#000000	##FFFFFF
##1B4E97	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25559A

Deuteranopia (green-blind)

#004A96

Tritanopia (blue-blind)

#00606B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1b4e97;
/* rgb */ color: rgb(27, 78, 151);
/* oklch */ color: oklch(43.3% 0.131 258.1);

Tailwind

colors: {
  custom: {
    50: '#6d7fb6',
    500: '#1b4e97',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e97;
$custom-light: #6d7fb6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e97",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 151
  },
  "hsl": {
    "h": 215.323,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.43275,
    "c": 0.13143,
    "h": 258.1
  },
  "luminance": 0.07916
}

Semantic roles & 50–950 ramp

primary

#1B4E97

secondary

#C1914C

accent

#A43BEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1B4E97

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

Preview Lab → · Contrast checker → · Palette generator →