#1F327D#1F327D

#1F327D is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.1% C 0.129 H 268.2°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#1F327D
RGB	rgb(31, 50, 125)
HSL	hsl(228, 60%, 31%)
HSV	hsv(228, 75%, 49%)
CMYK	cmyk(75.2%, 60%, 0%, 51%)
CIE-LAB	lab(23.84, 20.54, -44.79)
CIE-LCH	lch(23.84, 49.28, 294.64°)
OKLab	oklab(35.13% -0.0042 -0.1292)
OKLCH	oklch(35.13% 0.129 268.2)
XYZ	xyz(5.4061, 4.0526, 19.8954)
Luminance	0.0405 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F327D #7D6A1F

analogous

#1F617D #1F327D #3B1F7D

triadic

#1F327D #7D1F32 #327D1F

tetradic

#1F327D #7D1F61 #7D6A1F #1F7D3B

square

#1F327D #7D1F61 #7D6A1F #1F7D3B

split-complementary

#1F327D #7D3B1F #617D1F

monochromatic

#070B1B #131E4C #1F327D #2B46AE #4562D1

Accessibility & contrast

On white

11.60

#1F327D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1F327D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F327D

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F327D	#FFFFFF	#000000	##FFFFFF
##1F327D	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D80

Deuteranopia (green-blind)

#00357C

Tritanopia (blue-blind)

#004552

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1f327d;
/* rgb */ color: rgb(31, 50, 125);
/* oklch */ color: oklch(35.1% 0.129 268.2);

Tailwind

colors: {
  custom: {
    50: '#6969a3',
    500: '#1f327d',
    950: '#000000',
  },
}

SCSS

$custom: #1f327d;
$custom-light: #6969a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f327d",
  "rgb": {
    "r": 31,
    "g": 50,
    "b": 125
  },
  "hsl": {
    "h": 227.872,
    "s": 60.256,
    "l": 30.588
  },
  "oklch": {
    "l": 0.35127,
    "c": 0.12926,
    "h": 268.2
  },
  "luminance": 0.04053
}

Semantic roles & 50–950 ramp

primary

#1F327D

secondary

#B09B48

accent

#C344E3

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1F327D

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

Preview Lab → · Contrast checker → · Palette generator →