#1B327D#1B327D

#1B327D is a dark, vivid blue. Relative luminance 0.040; OKLCH L 34.9% C 0.130 H 266.5°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX	#1B327D
RGB	rgb(27, 50, 125)
HSL	hsl(226, 64%, 30%)
HSV	hsv(226, 78%, 49%)
CMYK	cmyk(78.4%, 60%, 0%, 51%)
CIE-LAB	lab(23.65, 20.02, -45.11)
CIE-LCH	lch(23.65, 49.36, 293.93°)
OKLab	oklab(34.93% -0.0079 -0.1302)
OKLCH	oklch(34.93% 0.13 266.5)
XYZ	xyz(5.2930, 3.9943, 19.8901)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B327D #7D661B

analogous

#1B637D #1B327D #351B7D

triadic

#1B327D #7D1B32 #327D1B

tetradic

#1B327D #7D1B63 #7D661B #1B7D35

square

#1B327D #7D1B63 #7D661B #1B7D35

split-complementary

#1B327D #7D351B #637D1B

monochromatic

#050A19 #101E4B #1B327D #2646AF #3D61D5

Accessibility & contrast

On white

11.67

#1B327D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1B327D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B327D

11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B327D	#FFFFFF	#000000	##FFFFFF
##1B327D	1.00	11.67	1.80	11.67
#FFFFFF	11.67	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D80

Deuteranopia (green-blind)

#00347C

Tritanopia (blue-blind)

#004552

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1b327d;
/* rgb */ color: rgb(27, 50, 125);
/* oklch */ color: oklch(34.9% 0.130 266.5);

Tailwind

colors: {
  custom: {
    50: '#6869a3',
    500: '#1b327d',
    950: '#000000',
  },
}

SCSS

$custom: #1b327d;
$custom-light: #6869a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b327d",
  "rgb": {
    "r": 27,
    "g": 50,
    "b": 125
  },
  "hsl": {
    "h": 225.918,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.34931,
    "c": 0.13046,
    "h": 266.5
  },
  "luminance": 0.03995
}

Semantic roles & 50–950 ramp

primary

#1B327D

secondary

#B19743

accent

#C040E7

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1B327D

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

Preview Lab → · Contrast checker → · Palette generator →