#1F328D#1F328D

#1F328D is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.6% C 0.152 H 268.4°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#1F328D
RGB	rgb(31, 50, 141)
HSL	hsl(230, 64%, 34%)
HSV	hsv(230, 78%, 55%)
CMYK	cmyk(78%, 64.5%, 0%, 44.7%)
CIE-LAB	lab(25.24, 26.81, -52.52)
CIE-LCH	lch(25.24, 58.97, 297.05°)
OKLab	oklab(36.6% -0.0042 -0.1519)
OKLCH	oklch(36.6% 0.152 268.4)
XYZ	xyz(6.5117, 4.4949, 25.7185)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F328D #8D7A1F

analogous

#1F698D #1F328D #431F8D

triadic

#1F328D #8D1F32 #328D1F

tetradic

#1F328D #8D1F69 #8D7A1F #1F8D43

square

#1F328D #8D1F69 #8D7A1F #1F8D43

split-complementary

#1F328D #8D431F #698D1F

monochromatic

#090E29 #14205B #1F328D #2A44BF #4E66D8

Accessibility & contrast

On white

11.06

#1F328D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1F328D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F328D

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F328D	#FFFFFF	#000000	##FFFFFF
##1F328D	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004190

Deuteranopia (green-blind)

#00378B

Tritanopia (blue-blind)

#004A5A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1f328d;
/* rgb */ color: rgb(31, 50, 141);
/* oklch */ color: oklch(36.6% 0.152 268.4);

Tailwind

colors: {
  custom: {
    50: '#6d69af',
    500: '#1f328d',
    950: '#000000',
  },
}

SCSS

$custom: #1f328d;
$custom-light: #6d69af;
$custom-dark: #000000;

JSON

{
  "hex": "#1f328d",
  "rgb": {
    "r": 31,
    "g": 50,
    "b": 141
  },
  "hsl": {
    "h": 229.636,
    "s": 63.953,
    "l": 33.725
  },
  "oklch": {
    "l": 0.36601,
    "c": 0.15192,
    "h": 268.4
  },
  "luminance": 0.04496
}

Semantic roles & 50–950 ramp

primary

#1F328D

secondary

#BBA84D

accent

#CA41E7

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1F328D

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

Preview Lab → · Contrast checker → · Palette generator →