#1B4086#1B4086

#1B4086 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.8% C 0.125 H 261.6°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#1B4086
RGB	rgb(27, 64, 134)
HSL	hsl(219, 66%, 32%)
HSV	hsv(219, 80%, 53%)
CMYK	cmyk(79.9%, 52.2%, 0%, 47.5%)
CIE-LAB	lab(28.43, 13.85, -43.00)
CIE-LCH	lch(28.43, 45.17, 287.86°)
OKLab	oklab(38.77% -0.0182 -0.1237)
OKLCH	oklch(38.77% 0.125 261.6)
XYZ	xyz(6.5869, 5.6203, 23.2873)
Luminance	0.0562 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4086 #86611B

analogous

#1B7686 #1B4086 #2B1B86

triadic

#1B4086 #861B40 #40861B

tetradic

#1B4086 #861B76 #86611B #1B862B

square

#1B4086 #861B76 #86611B #1B862B

split-complementary

#1B4086 #862B1B #76861B

monochromatic

#060F20 #112853 #1B4086 #2558B9 #4276D9

Accessibility & contrast

On white

9.89

#1B4086 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1B4086 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4086

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4086	#FFFFFF	#000000	##FFFFFF
##1B4086	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#144889

Deuteranopia (green-blind)

#003E85

Tritanopia (blue-blind)

#00515C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1b4086;
/* rgb */ color: rgb(27, 64, 134);
/* oklch */ color: oklch(38.8% 0.125 261.6);

Tailwind

colors: {
  custom: {
    50: '#6974aa',
    500: '#1b4086',
    950: '#000000',
  },
}

SCSS

$custom: #1b4086;
$custom-light: #6974aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4086",
  "rgb": {
    "r": 27,
    "g": 64,
    "b": 134
  },
  "hsl": {
    "h": 219.252,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.38771,
    "c": 0.12507,
    "h": 261.6
  },
  "luminance": 0.05621
}

Semantic roles & 50–950 ramp

primary

#1B4086

secondary

#B99144

accent

#AE3EE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1B4086

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

Preview Lab → · Contrast checker → · Palette generator →