#1B4686#1B4686

#1B4686 is a dark, moderate blue. Relative luminance 0.063; OKLCH L 40.2% C 0.117 H 258.5°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#1B4686
RGB	rgb(27, 70, 134)
HSL	hsl(216, 66%, 32%)
HSV	hsv(216, 80%, 53%)
CMYK	cmyk(79.9%, 47.8%, 0%, 47.5%)
CIE-LAB	lab(30.24, 9.71, -40.09)
CIE-LCH	lch(30.24, 41.24, 283.62°)
OKLab	oklab(40.16% -0.0233 -0.115)
OKLCH	oklch(40.16% 0.117 258.5)
XYZ	xyz(6.9437, 6.3338, 23.4062)
Luminance	0.0634 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4686 #865B1B

analogous

#1B7C86 #1B4686 #261B86

triadic

#1B4686 #861B46 #46861B

tetradic

#1B4686 #861B7C #865B1B #1B8626

square

#1B4686 #861B7C #865B1B #1B8626

split-complementary

#1B4686 #86261B #7C861B

monochromatic

#061120 #112B53 #1B4686 #2561B9 #427FD9

Accessibility & contrast

On white

9.26

#1B4686 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#1B4686 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4686

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4686	#FFFFFF	#000000	##FFFFFF
##1B4686	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#244C88

Deuteranopia (green-blind)

#084385

Tritanopia (blue-blind)

#00555F

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b4686;
/* rgb */ color: rgb(27, 70, 134);
/* oklch */ color: oklch(40.2% 0.117 258.5);

Tailwind

colors: {
  custom: {
    50: '#6978aa',
    500: '#1b4686',
    950: '#000000',
  },
}

SCSS

$custom: #1b4686;
$custom-light: #6978aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4686",
  "rgb": {
    "r": 27,
    "g": 70,
    "b": 134
  },
  "hsl": {
    "h": 215.888,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.40157,
    "c": 0.11738,
    "h": 258.5
  },
  "luminance": 0.06335
}

Semantic roles & 50–950 ramp

primary

#1B4686

secondary

#B98A44

accent

#A53EE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1B4686

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

Preview Lab → · Contrast checker → · Palette generator →