#1B4697#1B4697

#1B4697 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.5% C 0.141 H 261.5°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#1B4697
RGB	rgb(27, 70, 151)
HSL	hsl(219, 70%, 35%)
HSV	hsv(219, 82%, 59%)
CMYK	cmyk(82.1%, 53.6%, 0%, 40.8%)
CIE-LAB	lab(31.46, 16.62, -48.55)
CIE-LCH	lch(31.46, 51.32, 288.89°)
OKLab	oklab(41.48% -0.0208 -0.14)
OKLCH	oklch(41.48% 0.142 261.5)
XYZ	xyz(8.2260, 6.8467, 30.1602)
Luminance	0.0685 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4697 #976C1B

analogous

#1B8497 #1B4697 #2E1B97

triadic

#1B4697 #971B46 #46971B

tetradic

#1B4697 #971B84 #976C1B #1B972E

square

#1B4697 #971B84 #976C1B #1B972E

split-complementary

#1B4697 #972E1B #84971B

monochromatic

#08162F #122E63 #1B4697 #245ECB #4D80DF

Accessibility & contrast

On white

8.86

#1B4697 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1B4697 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4697

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4697	#FFFFFF	#000000	##FFFFFF
##1B4697	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09509A

Deuteranopia (green-blind)

#004595

Tritanopia (blue-blind)

#005A67

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b4697;
/* rgb */ color: rgb(27, 70, 151);
/* oklch */ color: oklch(41.5% 0.141 261.5);

Tailwind

colors: {
  custom: {
    50: '#6d78b6',
    500: '#1b4697',
    950: '#000000',
  },
}

SCSS

$custom: #1b4697;
$custom-light: #6d78b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4697",
  "rgb": {
    "r": 27,
    "g": 70,
    "b": 151
  },
  "hsl": {
    "h": 219.194,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.41476,
    "c": 0.1415,
    "h": 261.5
  },
  "luminance": 0.06848
}

Semantic roles & 50–950 ramp

primary

#1B4697

secondary

#C1994C

accent

#AF3BEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4697

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

Preview Lab → · Contrast checker → · Palette generator →