#1F3096#1F3096

#1F3096 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.1% C 0.167 H 268.8°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).

Color values

HEX	#1F3096
RGB	rgb(31, 48, 150)
HSL	hsl(231, 66%, 35%)
HSV	hsv(231, 79%, 59%)
CMYK	cmyk(79.3%, 68%, 0%, 41.2%)
CIE-LAB	lab(25.58, 31.59, -57.52)
CIE-LCH	lch(25.58, 65.62, 298.78°)
OKLab	oklab(37.11% -0.0034 -0.1665)
OKLCH	oklch(37.11% 0.167 268.8)
XYZ	xyz(7.1251, 4.6064, 29.3619)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3096 #96851F

analogous

#1F6B96 #1F3096 #4A1F96

triadic

#1F3096 #961F30 #30961F

tetradic

#1F3096 #961F6B #96851F #1F964A

square

#1F3096 #961F6B #96851F #1F964A

split-complementary

#1F3096 #964A1F #6B961F

monochromatic

#0A1031 #152063 #1F3096 #2940C9 #5467DC

Accessibility & contrast

On white

10.93

#1F3096 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#1F3096 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3096

10.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3096	#FFFFFF	#000000	##FFFFFF
##1F3096	1.00	10.93	1.92	10.93
#FFFFFF	10.93	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004299

Deuteranopia (green-blind)

#003794

Tritanopia (blue-blind)

#004C5F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1f3096;
/* rgb */ color: rgb(31, 48, 150);
/* oklch */ color: oklch(37.1% 0.167 268.8);

Tailwind

colors: {
  custom: {
    50: '#7068b6',
    500: '#1f3096',
    950: '#000000',
  },
}

SCSS

$custom: #1f3096;
$custom-light: #7068b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3096",
  "rgb": {
    "r": 31,
    "g": 48,
    "b": 150
  },
  "hsl": {
    "h": 231.429,
    "s": 65.746,
    "l": 35.49
  },
  "oklch": {
    "l": 0.37109,
    "c": 0.16654,
    "h": 268.8
  },
  "luminance": 0.04607
}

Semantic roles & 50–950 ramp

primary

#1F3096

secondary

#BFAF52

accent

#D03FE9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #1F3096

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

Preview Lab → · Contrast checker → · Palette generator →