#1B327C#1B327C

#1B327C is a dark, vivid blue. Relative luminance 0.040; OKLCH L 34.8% C 0.129 H 266.5°. Best body text is #FFFFFF at 11.71:1 contrast (WCAG AA passes).

Color values

HEX	#1B327C
RGB	rgb(27, 50, 124)
HSL	hsl(226, 64%, 30%)
HSV	hsv(226, 78%, 49%)
CMYK	cmyk(78.2%, 59.7%, 0%, 51.4%)
CIE-LAB	lab(23.57, 19.62, -44.62)
CIE-LCH	lch(23.57, 48.74, 293.73°)
OKLab	oklab(34.84% -0.008 -0.1288)
OKLCH	oklch(34.84% 0.129 266.5)
XYZ	xyz(5.2294, 3.9689, 19.5553)
Luminance	0.0397 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B327C #7C651B

analogous

#1B637C #1B327C #351B7C

triadic

#1B327C #7C1B32 #327C1B

tetradic

#1B327C #7C1B63 #7C651B #1B7C35

square

#1B327C #7C1B63 #7C651B #1B7C35

split-complementary

#1B327C #7C351B #637C1B

monochromatic

#050A19 #101E4A #1B327C #2646AE #3D61D5

Accessibility & contrast

On white

11.71

#1B327C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1B327C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B327C

11.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B327C	#FFFFFF	#000000	##FFFFFF
##1B327C	1.00	11.71	1.79	11.71
#FFFFFF	11.71	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7F

Deuteranopia (green-blind)

#00347B

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1b327c;
/* rgb */ color: rgb(27, 50, 124);
/* oklch */ color: oklch(34.8% 0.129 266.5);

Tailwind

colors: {
  custom: {
    50: '#6769a3',
    500: '#1b327c',
    950: '#000000',
  },
}

SCSS

$custom: #1b327c;
$custom-light: #6769a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b327c",
  "rgb": {
    "r": 27,
    "g": 50,
    "b": 124
  },
  "hsl": {
    "h": 225.773,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.34841,
    "c": 0.12902,
    "h": 266.5
  },
  "luminance": 0.03969
}

Semantic roles & 50–950 ramp

primary

#1B327C

secondary

#B09643

accent

#C041E7

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1B327C

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

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