#1F327C#1F327C

#1F327C is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.0% C 0.128 H 268.1°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#1F327C
RGB	rgb(31, 50, 124)
HSL	hsl(228, 60%, 30%)
HSV	hsv(228, 75%, 49%)
CMYK	cmyk(75%, 59.7%, 0%, 51.4%)
CIE-LAB	lab(23.76, 20.15, -44.30)
CIE-LCH	lch(23.76, 48.66, 294.46°)
OKLab	oklab(35.04% -0.0042 -0.1277)
OKLCH	oklch(35.04% 0.128 268.1)
XYZ	xyz(5.3425, 4.0272, 19.5606)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F327C #7C691F

analogous

#1F607C #1F327C #3A1F7C

triadic

#1F327C #7C1F32 #327C1F

tetradic

#1F327C #7C1F60 #7C691F #1F7C3A

square

#1F327C #7C1F60 #7C691F #1F7C3A

split-complementary

#1F327C #7C3A1F #607C1F

monochromatic

#070B1A #131E4B #1F327C #2B46AD #4561D0

Accessibility & contrast

On white

11.63

#1F327C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1F327C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F327C

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F327C	#FFFFFF	#000000	##FFFFFF
##1F327C	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7F

Deuteranopia (green-blind)

#00347B

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1f327c;
/* rgb */ color: rgb(31, 50, 124);
/* oklch */ color: oklch(35.0% 0.128 268.1);

Tailwind

colors: {
  custom: {
    50: '#6969a3',
    500: '#1f327c',
    950: '#000000',
  },
}

SCSS

$custom: #1f327c;
$custom-light: #6969a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f327c",
  "rgb": {
    "r": 31,
    "g": 50,
    "b": 124
  },
  "hsl": {
    "h": 227.742,
    "s": 60,
    "l": 30.392
  },
  "oklch": {
    "l": 0.35038,
    "c": 0.12781,
    "h": 268.1
  },
  "luminance": 0.04028
}

Semantic roles & 50–950 ramp

primary

#1F327C

secondary

#AF9A48

accent

#C345E3

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1F327C

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

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