#1B2185#1B2185

#1B2185 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.6% C 0.162 H 270.7°. Best body text is #FFFFFF at 13.10:1 contrast (WCAG AA passes).

Color values

HEX	#1B2185
RGB	rgb(27, 33, 133)
HSL	hsl(237, 66%, 31%)
HSV	hsv(237, 80%, 52%)
CMYK	cmyk(79.7%, 75.2%, 0%, 47.8%)
CIE-LAB	lab(20.10, 34.56, -55.99)
CIE-LCH	lch(20.10, 65.79, 301.68°)
OKLab	oklab(32.56% 0.0019 -0.1621)
OKLCH	oklch(32.56% 0.162 270.7)
XYZ	xyz(5.2280, 3.0136, 22.4919)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2185 #857F1B

analogous

#1B5685 #1B2185 #4A1B85

triadic

#1B2185 #851B21 #21851B

tetradic

#1B2185 #851B56 #857F1B #1B854A

square

#1B2185 #851B56 #857F1B #1B854A

split-complementary

#1B2185 #854A1B #56851B

monochromatic

#06081F #111452 #1B2185 #252EB8 #424AD9

Accessibility & contrast

On white

13.10

#1B2185 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1B2185 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2185

13.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2185	#FFFFFF	#000000	##FFFFFF
##1B2185	1.00	13.10	1.60	13.10
#FFFFFF	13.10	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003688

Deuteranopia (green-blind)

#002B83

Tritanopia (blue-blind)

#003E51

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1b2185;
/* rgb */ color: rgb(27, 33, 133);
/* oklch */ color: oklch(32.6% 0.162 270.7);

Tailwind

colors: {
  custom: {
    50: '#6b5daa',
    500: '#1b2185',
    950: '#000000',
  },
}

SCSS

$custom: #1b2185;
$custom-light: #6b5daa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2185",
  "rgb": {
    "r": 27,
    "g": 33,
    "b": 133
  },
  "hsl": {
    "h": 236.604,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32564,
    "c": 0.16214,
    "h": 270.7
  },
  "luminance": 0.03014
}

Semantic roles & 50–950 ramp

primary

#1B2185

secondary

#B8B244

accent

#E03FE9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1B2185

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

Preview Lab → · Contrast checker → · Palette generator →