#1B56AA#1B56AA

#1B56AA is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.5% C 0.148 H 258.3°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#1B56AA
RGB	rgb(27, 86, 170)
HSL	hsl(215, 73%, 39%)
HSV	hsv(215, 84%, 67%)
CMYK	cmyk(84.1%, 49.4%, 0%, 33.3%)
CIE-LAB	lab(37.46, 13.46, -50.26)
CIE-LCH	lch(37.46, 52.03, 285.00°)
OKLab	oklab(46.5% -0.03 -0.1446)
OKLCH	oklch(46.5% 0.148 258.3)
XYZ	xyz(11.0328, 9.7895, 39.3305)
Luminance	0.0979 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B56AA #AA6F1B

analogous

#1B9DAA #1B56AA #271BAA

triadic

#1B56AA #AA1B56 #56AA1B

tetradic

#1B56AA #AA1B9D #AA6F1B #1BAA27

square

#1B56AA #AA1B9D #AA6F1B #1BAA27

split-complementary

#1B56AA #AA271B #9DAA1B

monochromatic

#0A2140 #133B75 #1B56AA #2671DC #5B94E5

Accessibility & contrast

On white

7.10

#1B56AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#1B56AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B56AA

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B56AA	#FFFFFF	#000000	##FFFFFF
##1B56AA	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#245FAD

Deuteranopia (green-blind)

#0052A8

Tritanopia (blue-blind)

#006A78

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1b56aa;
/* rgb */ color: rgb(27, 86, 170);
/* oklch */ color: oklch(46.5% 0.148 258.3);

Tailwind

colors: {
  custom: {
    50: '#7185c4',
    500: '#1b56aa',
    950: '#000000',
  },
}

SCSS

$custom: #1b56aa;
$custom-light: #7185c4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b56aa",
  "rgb": {
    "r": 27,
    "g": 86,
    "b": 170
  },
  "hsl": {
    "h": 215.245,
    "s": 72.589,
    "l": 38.627
  },
  "oklch": {
    "l": 0.46504,
    "c": 0.14774,
    "h": 258.3
  },
  "luminance": 0.09791
}

Semantic roles & 50–950 ramp

primary

#1B56AA

secondary

#C99A58

accent

#A439EF

background

#F7F8FC

surface

#EDEFF8

border

#C8CAD1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #1B56AA

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

Preview Lab → · Contrast checker → · Palette generator →