#1B4786#1B4786

#1B4786 is a dark, moderate blue. Relative luminance 0.065; OKLCH L 40.4% C 0.116 H 258.0°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#1B4786
RGB	rgb(27, 71, 134)
HSL	hsl(215, 66%, 32%)
HSV	hsv(215, 80%, 53%)
CMYK	cmyk(79.9%, 47%, 0%, 47.5%)
CIE-LAB	lab(30.54, 9.03, -39.60)
CIE-LCH	lch(30.54, 40.61, 282.84°)
OKLab	oklab(40.39% -0.0242 -0.1136)
OKLCH	oklch(40.39% 0.116 258)
XYZ	xyz(7.0067, 6.4599, 23.4272)
Luminance	0.0646 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4786 #865A1B

analogous

#1B7D86 #1B4786 #251B86

triadic

#1B4786 #861B47 #47861B

tetradic

#1B4786 #861B7D #865A1B #1B8625

square

#1B4786 #861B7D #865A1B #1B8625

split-complementary

#1B4786 #86251B #7D861B

monochromatic

#061120 #112C53 #1B4786 #2562B9 #4280D9

Accessibility & contrast

On white

9.16

#1B4786 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#1B4786 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4786

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4786	#FFFFFF	#000000	##FFFFFF
##1B4786	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264D88

Deuteranopia (green-blind)

#0D4385

Tritanopia (blue-blind)

#005660

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1b4786;
/* rgb */ color: rgb(27, 71, 134);
/* oklch */ color: oklch(40.4% 0.116 258.0);

Tailwind

colors: {
  custom: {
    50: '#6979aa',
    500: '#1b4786',
    950: '#000000',
  },
}

SCSS

$custom: #1b4786;
$custom-light: #6979aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4786",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 134
  },
  "hsl": {
    "h": 215.327,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.40392,
    "c": 0.11613,
    "h": 258
  },
  "luminance": 0.06461
}

Semantic roles & 50–950 ramp

primary

#1B4786

secondary

#B98944

accent

#A33EE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1B4786

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

Preview Lab → · Contrast checker → · Palette generator →