#1F328F#1F328F

#1F328F is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.8% C 0.155 H 268.4°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#1F328F
RGB	rgb(31, 50, 143)
HSL	hsl(230, 64%, 34%)
HSV	hsv(230, 78%, 56%)
CMYK	cmyk(78.3%, 65%, 0%, 43.9%)
CIE-LAB	lab(25.43, 27.59, -53.46)
CIE-LCH	lch(25.43, 60.16, 297.30°)
OKLab	oklab(36.79% -0.0042 -0.1546)
OKLCH	oklch(36.79% 0.155 268.4)
XYZ	xyz(6.6619, 4.5549, 26.5094)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F328F #8F7C1F

analogous

#1F6A8F #1F328F #441F8F

triadic

#1F328F #8F1F32 #328F1F

tetradic

#1F328F #8F1F6A #8F7C1F #1F8F44

square

#1F328F #8F1F6A #8F7C1F #1F8F44

split-complementary

#1F328F #8F441F #6A8F1F

monochromatic

#090F2A #14205D #1F328F #2A44C1 #4F67D9

Accessibility & contrast

On white

10.99

#1F328F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1F328F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F328F

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F328F	#FFFFFF	#000000	##FFFFFF
##1F328F	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004292

Deuteranopia (green-blind)

#00378D

Tritanopia (blue-blind)

#004A5B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1f328f;
/* rgb */ color: rgb(31, 50, 143);
/* oklch */ color: oklch(36.8% 0.155 268.4);

Tailwind

colors: {
  custom: {
    50: '#6e69b1',
    500: '#1f328f',
    950: '#000000',
  },
}

SCSS

$custom: #1f328f;
$custom-light: #6e69b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f328f",
  "rgb": {
    "r": 31,
    "g": 50,
    "b": 143
  },
  "hsl": {
    "h": 229.821,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.36792,
    "c": 0.15467,
    "h": 268.4
  },
  "luminance": 0.04556
}

Semantic roles & 50–950 ramp

primary

#1F328F

secondary

#BCA94E

accent

#CB40E7

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1F328F

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

Preview Lab → · Contrast checker → · Palette generator →