#1B327E#1B327E

#1B327E is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.0% C 0.132 H 266.6°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#1B327E
RGB	rgb(27, 50, 126)
HSL	hsl(226, 65%, 30%)
HSV	hsv(226, 79%, 49%)
CMYK	cmyk(78.6%, 60.3%, 0%, 50.6%)
CIE-LAB	lab(23.74, 20.42, -45.61)
CIE-LCH	lch(23.74, 49.97, 294.12°)
OKLab	oklab(35.02% -0.0079 -0.1317)
OKLCH	oklch(35.02% 0.132 266.6)
XYZ	xyz(5.3572, 4.0200, 20.2282)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B327E #7E671B

analogous

#1B637E #1B327E #361B7E

triadic

#1B327E #7E1B32 #327E1B

tetradic

#1B327E #7E1B63 #7E671B #1B7E36

square

#1B327E #7E1B63 #7E671B #1B7E36

split-complementary

#1B327E #7E361B #637E1B

monochromatic

#050A19 #101E4C #1B327E #2646B0 #3E61D6

Accessibility & contrast

On white

11.64

#1B327E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1B327E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B327E

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B327E	#FFFFFF	#000000	##FFFFFF
##1B327E	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D81

Deuteranopia (green-blind)

#00347D

Tritanopia (blue-blind)

#004553

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1b327e;
/* rgb */ color: rgb(27, 50, 126);
/* oklch */ color: oklch(35.0% 0.132 266.6);

Tailwind

colors: {
  custom: {
    50: '#6869a4',
    500: '#1b327e',
    950: '#000000',
  },
}

SCSS

$custom: #1b327e;
$custom-light: #6869a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b327e",
  "rgb": {
    "r": 27,
    "g": 50,
    "b": 126
  },
  "hsl": {
    "h": 226.061,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.35021,
    "c": 0.13191,
    "h": 266.6
  },
  "luminance": 0.04021
}

Semantic roles & 50–950 ramp

primary

#1B327E

secondary

#B29843

accent

#C140E8

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1B327E

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

Preview Lab → · Contrast checker → · Palette generator →