#1B418B#1B418B

#1B418B is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.4% C 0.131 H 261.9°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#1B418B
RGB	rgb(27, 65, 139)
HSL	hsl(220, 67%, 33%)
HSV	hsv(220, 81%, 55%)
CMYK	cmyk(80.6%, 53.2%, 0%, 45.5%)
CIE-LAB	lab(29.10, 15.20, -45.01)
CIE-LCH	lch(29.10, 47.51, 288.65°)
OKLab	oklab(39.4% -0.0184 -0.1296)
OKLCH	oklch(39.4% 0.131 261.9)
XYZ	xyz(7.0008, 5.8769, 25.1865)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B418B #8B651B

analogous

#1B798B #1B418B #2D1B8B

triadic

#1B418B #8B1B41 #418B1B

tetradic

#1B418B #8B1B79 #8B651B #1B8B2D

square

#1B418B #8B1B79 #8B651B #1B8B2D

split-complementary

#1B418B #8B2D1B #798B1B

monochromatic

#071125 #112958 #1B418B #2559BE #4578DB

Accessibility & contrast

On white

9.65

#1B418B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1B418B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B418B

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B418B	#FFFFFF	#000000	##FFFFFF
##1B418B	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E4A8E

Deuteranopia (green-blind)

#00408A

Tritanopia (blue-blind)

#00535F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1b418b;
/* rgb */ color: rgb(27, 65, 139);
/* oklch */ color: oklch(39.4% 0.131 261.9);

Tailwind

colors: {
  custom: {
    50: '#6a75ad',
    500: '#1b418b',
    950: '#000000',
  },
}

SCSS

$custom: #1b418b;
$custom-light: #6a75ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1b418b",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 139
  },
  "hsl": {
    "h": 219.643,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.39397,
    "c": 0.13095,
    "h": 261.9
  },
  "luminance": 0.05878
}

Semantic roles & 50–950 ramp

primary

#1B418B

secondary

#BC9445

accent

#B03DEA

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1B418B

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

Preview Lab → · Contrast checker → · Palette generator →