#1B328E#1B328E

#1B328E is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.5% C 0.154 H 267.1°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#1B328E
RGB	rgb(27, 50, 142)
HSL	hsl(228, 68%, 33%)
HSV	hsv(228, 81%, 56%)
CMYK	cmyk(81%, 64.8%, 0%, 44.3%)
CIE-LAB	lab(25.16, 26.79, -53.29)
CIE-LCH	lch(25.16, 59.64, 296.69°)
OKLab	oklab(36.52% -0.0078 -0.1542)
OKLCH	oklch(36.52% 0.154 267.1)
XYZ	xyz(6.4734, 4.4665, 26.1069)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B328E #8E771B

analogous

#1B6B8E #1B328E #3D1B8E

triadic

#1B328E #8E1B32 #328E1B

tetradic

#1B328E #8E1B6B #8E771B #1B8E3D

square

#1B328E #8E1B6B #8E771B #1B8E3D

split-complementary

#1B328E #8E3D1B #6B8E1B

monochromatic

#070E27 #11205B #1B328E #2544C1 #4765DC

Accessibility & contrast

On white

11.09

#1B328E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#1B328E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B328E

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B328E	#FFFFFF	#000000	##FFFFFF
##1B328E	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004191

Deuteranopia (green-blind)

#00368C

Tritanopia (blue-blind)

#004A5B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1b328e;
/* rgb */ color: rgb(27, 50, 142);
/* oklch */ color: oklch(36.5% 0.154 267.1);

Tailwind

colors: {
  custom: {
    50: '#6c69b0',
    500: '#1b328e',
    950: '#000000',
  },
}

SCSS

$custom: #1b328e;
$custom-light: #6c69b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b328e",
  "rgb": {
    "r": 27,
    "g": 50,
    "b": 142
  },
  "hsl": {
    "h": 228,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.36516,
    "c": 0.1544,
    "h": 267.1
  },
  "luminance": 0.04467
}

Semantic roles & 50–950 ramp

primary

#1B328E

secondary

#BEA647

accent

#C83DEB

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1B328E

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

Preview Lab → · Contrast checker → · Palette generator →