#1B418C#1B418C

#1B418C is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.5% C 0.132 H 262.1°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#1B418C
RGB	rgb(27, 65, 140)
HSL	hsl(220, 68%, 33%)
HSV	hsv(220, 81%, 55%)
CMYK	cmyk(80.7%, 53.6%, 0%, 45.1%)
CIE-LAB	lab(29.17, 15.60, -45.51)
CIE-LCH	lch(29.17, 48.11, 288.92°)
OKLab	oklab(39.48% -0.0183 -0.1311)
OKLCH	oklch(39.48% 0.132 262.1)
XYZ	xyz(7.0742, 5.9062, 25.5730)
Luminance	0.0591 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B418C #8C661B

analogous

#1B798C #1B418C #2D1B8C

triadic

#1B418C #8C1B41 #418C1B

tetradic

#1B418C #8C1B79 #8C661B #1B8C2D

square

#1B418C #8C1B79 #8C661B #1B8C2D

split-complementary

#1B418C #8C2D1B #798C1B

monochromatic

#071125 #112959 #1B418C #2559BF #4678DB

Accessibility & contrast

On white

9.63

#1B418C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1B418C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B418C

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B418C	#FFFFFF	#000000	##FFFFFF
##1B418C	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C4A8F

Deuteranopia (green-blind)

#00408B

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1b418c;
/* rgb */ color: rgb(27, 65, 140);
/* oklch */ color: oklch(39.5% 0.132 262.1);

Tailwind

colors: {
  custom: {
    50: '#6b75ae',
    500: '#1b418c',
    950: '#000000',
  },
}

SCSS

$custom: #1b418c;
$custom-light: #6b75ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1b418c",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 140
  },
  "hsl": {
    "h": 219.823,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.39478,
    "c": 0.13238,
    "h": 262.1
  },
  "luminance": 0.05907
}

Semantic roles & 50–950 ramp

primary

#1B418C

secondary

#BD9546

accent

#B03DEB

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1B418C

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

Preview Lab → · Contrast checker → · Palette generator →