#1F328B#1F328B

#1F328B is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.4% C 0.149 H 268.4°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#1F328B
RGB	rgb(31, 50, 139)
HSL	hsl(229, 64%, 33%)
HSV	hsv(229, 78%, 55%)
CMYK	cmyk(77.7%, 64%, 0%, 45.5%)
CIE-LAB	lab(25.06, 26.04, -51.57)
CIE-LCH	lch(25.06, 57.78, 296.79°)
OKLab	oklab(36.41% -0.0041 -0.1491)
OKLCH	oklch(36.41% 0.149 268.4)
XYZ	xyz(6.3643, 4.4359, 24.9419)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F328B #8B781F

analogous

#1F688B #1F328B #421F8B

triadic

#1F328B #8B1F32 #328B1F

tetradic

#1F328B #8B1F68 #8B781F #1F8B42

square

#1F328B #8B1F68 #8B781F #1F8B42

split-complementary

#1F328B #8B421F #688B1F

monochromatic

#090E27 #142059 #1F328B #2A44BD #4D65D7

Accessibility & contrast

On white

11.13

#1F328B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#1F328B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F328B

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F328B	#FFFFFF	#000000	##FFFFFF
##1F328B	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418E

Deuteranopia (green-blind)

#003689

Tritanopia (blue-blind)

#004959

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1f328b;
/* rgb */ color: rgb(31, 50, 139);
/* oklch */ color: oklch(36.4% 0.149 268.4);

Tailwind

colors: {
  custom: {
    50: '#6d69ae',
    500: '#1f328b',
    950: '#000000',
  },
}

SCSS

$custom: #1f328b;
$custom-light: #6d69ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1f328b",
  "rgb": {
    "r": 31,
    "g": 50,
    "b": 139
  },
  "hsl": {
    "h": 229.444,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.36412,
    "c": 0.14916,
    "h": 268.4
  },
  "luminance": 0.04437
}

Semantic roles & 50–950 ramp

primary

#1F328B

secondary

#BAA74C

accent

#C941E7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1F328B

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

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