#1B4486#1B4486

#1B4486 is a dark, moderate blue. Relative luminance 0.061; OKLCH L 39.7% C 0.120 H 259.6°. Best body text is #FFFFFF at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#1B4486
RGB	rgb(27, 68, 134)
HSL	hsl(217, 66%, 32%)
HSV	hsv(217, 80%, 53%)
CMYK	cmyk(79.9%, 49.3%, 0%, 47.5%)
CIE-LAB	lab(29.63, 11.08, -41.06)
CIE-LCH	lch(29.63, 42.53, 285.11°)
OKLab	oklab(39.69% -0.0216 -0.118)
OKLCH	oklch(39.69% 0.12 259.6)
XYZ	xyz(6.8206, 6.0877, 23.3652)
Luminance	0.0609 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4486 #865D1B

analogous

#1B7A86 #1B4486 #271B86

triadic

#1B4486 #861B44 #44861B

tetradic

#1B4486 #861B7A #865D1B #1B8627

square

#1B4486 #861B7A #865D1B #1B8627

split-complementary

#1B4486 #86271B #7A861B

monochromatic

#061020 #112A53 #1B4486 #255EB9 #427CD9

Accessibility & contrast

On white

9.47

#1B4486 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#1B4486 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4486

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4486	#FFFFFF	#000000	##FFFFFF
##1B4486	1.00	9.47	2.22	9.47
#FFFFFF	9.47	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4B88

Deuteranopia (green-blind)

#004185

Tritanopia (blue-blind)

#00545E

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1b4486;
/* rgb */ color: rgb(27, 68, 134);
/* oklch */ color: oklch(39.7% 0.120 259.6);

Tailwind

colors: {
  custom: {
    50: '#6977aa',
    500: '#1b4486',
    950: '#000000',
  },
}

SCSS

$custom: #1b4486;
$custom-light: #6977aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4486",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 134
  },
  "hsl": {
    "h": 217.009,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.3969,
    "c": 0.11992,
    "h": 259.6
  },
  "luminance": 0.06088
}

Semantic roles & 50–950 ramp

primary

#1B4486

secondary

#B98C44

accent

#A83EE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1B4486

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

Preview Lab → · Contrast checker → · Palette generator →