#1B327A#1B327A

#1B327A is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.7% C 0.126 H 266.3°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#1B327A
RGB	rgb(27, 50, 122)
HSL	hsl(225, 64%, 29%)
HSV	hsv(225, 78%, 48%)
CMYK	cmyk(77.9%, 59%, 0%, 52.2%)
CIE-LAB	lab(23.40, 18.81, -43.62)
CIE-LCH	lch(23.40, 47.51, 293.32°)
OKLab	oklab(34.66% -0.0081 -0.1258)
OKLCH	oklch(34.66% 0.126 266.3)
XYZ	xyz(5.1042, 3.9188, 18.8960)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B327A #7A631B

analogous

#1B627A #1B327A #341B7A

triadic

#1B327A #7A1B32 #327A1B

tetradic

#1B327A #7A1B62 #7A631B #1B7A34

square

#1B327A #7A1B62 #7A631B #1B7A34

split-complementary

#1B327A #7A341B #627A1B

monochromatic

#060A19 #101D48 #1B327A #2647AC #3C60D4

Accessibility & contrast

On white

11.77

#1B327A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1B327A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B327A

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B327A	#FFFFFF	#000000	##FFFFFF
##1B327A	1.00	11.77	1.78	11.77
#FFFFFF	11.77	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7C

Deuteranopia (green-blind)

#003479

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1b327a;
/* rgb */ color: rgb(27, 50, 122);
/* oklch */ color: oklch(34.7% 0.126 266.3);

Tailwind

colors: {
  custom: {
    50: '#6769a1',
    500: '#1b327a',
    950: '#000000',
  },
}

SCSS

$custom: #1b327a;
$custom-light: #6769a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b327a",
  "rgb": {
    "r": 27,
    "g": 50,
    "b": 122
  },
  "hsl": {
    "h": 225.474,
    "s": 63.758,
    "l": 29.216
  },
  "oklch": {
    "l": 0.34663,
    "c": 0.12611,
    "h": 266.3
  },
  "luminance": 0.03919
}

Semantic roles & 50–950 ramp

primary

#1B327A

secondary

#AE9443

accent

#BF41E7

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1B327A

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

Preview Lab → · Contrast checker → · Palette generator →