#1F327A#1F327A

#1F327A is a dark, vivid blue. Relative luminance 0.040; OKLCH L 34.9% C 0.125 H 268.0°. Best body text is #FFFFFF at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#1F327A
RGB	rgb(31, 50, 122)
HSL	hsl(227, 59%, 30%)
HSV	hsv(227, 75%, 48%)
CMYK	cmyk(74.6%, 59%, 0%, 52.2%)
CIE-LAB	lab(23.60, 19.35, -43.30)
CIE-LCH	lch(23.60, 47.43, 294.08°)
OKLab	oklab(34.86% -0.0043 -0.1248)
OKLCH	oklch(34.86% 0.125 268)
XYZ	xyz(5.2173, 3.9771, 18.9013)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F327A #7A671F

analogous

#1F5F7A #1F327A #3A1F7A

triadic

#1F327A #7A1F32 #327A1F

tetradic

#1F327A #7A1F5F #7A671F #1F7A3A

square

#1F327A #7A1F5F #7A671F #1F7A3A

split-complementary

#1F327A #7A3A1F #5F7A1F

monochromatic

#060A18 #131E49 #1F327A #2B46AB #4461CF

Accessibility & contrast

On white

11.70

#1F327A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1F327A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F327A

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F327A	#FFFFFF	#000000	##FFFFFF
##1F327A	1.00	11.70	1.80	11.70
#FFFFFF	11.70	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7C

Deuteranopia (green-blind)

#003479

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1f327a;
/* rgb */ color: rgb(31, 50, 122);
/* oklch */ color: oklch(34.9% 0.125 268.0);

Tailwind

colors: {
  custom: {
    50: '#6869a1',
    500: '#1f327a',
    950: '#000000',
  },
}

SCSS

$custom: #1f327a;
$custom-light: #6869a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f327a",
  "rgb": {
    "r": 31,
    "g": 50,
    "b": 122
  },
  "hsl": {
    "h": 227.473,
    "s": 59.477,
    "l": 30
  },
  "oklch": {
    "l": 0.34862,
    "c": 0.12488,
    "h": 268
  },
  "luminance": 0.03978
}

Semantic roles & 50–950 ramp

primary

#1F327A

secondary

#AD9847

accent

#C245E3

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1F327A

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

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