#1F3C96#1F3C96

#1F3C96 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.4% C 0.152 H 265.9°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#1F3C96
RGB	rgb(31, 60, 150)
HSL	hsl(225, 66%, 35%)
HSV	hsv(225, 79%, 59%)
CMYK	cmyk(79.3%, 60%, 0%, 41.2%)
CIE-LAB	lab(28.71, 23.50, -52.41)
CIE-LCH	lch(28.71, 57.43, 294.15°)
OKLab	oklab(39.42% -0.0108 -0.1514)
OKLCH	oklch(39.42% 0.152 265.9)
XYZ	xyz(7.6840, 5.7242, 29.5481)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3C96 #96791F

analogous

#1F7796 #1F3C96 #3D1F96

triadic

#1F3C96 #961F3C #3C961F

tetradic

#1F3C96 #961F77 #96791F #1F963D

square

#1F3C96 #961F77 #96791F #1F963D

split-complementary

#1F3C96 #963D1F #77961F

monochromatic

#0A1331 #152863 #1F3C96 #2950C9 #5475DC

Accessibility & contrast

On white

9.79

#1F3C96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1F3C96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3C96

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3C96	#FFFFFF	#000000	##FFFFFF
##1F3C96	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004999

Deuteranopia (green-blind)

#003E94

Tritanopia (blue-blind)

#005363

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1f3c96;
/* rgb */ color: rgb(31, 60, 150);
/* oklch */ color: oklch(39.4% 0.152 265.9);

Tailwind

colors: {
  custom: {
    50: '#6f71b6',
    500: '#1f3c96',
    950: '#000000',
  },
}

SCSS

$custom: #1f3c96;
$custom-light: #6f71b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3c96",
  "rgb": {
    "r": 31,
    "g": 60,
    "b": 150
  },
  "hsl": {
    "h": 225.378,
    "s": 65.746,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39416,
    "c": 0.15179,
    "h": 265.9
  },
  "luminance": 0.05725
}

Semantic roles & 50–950 ramp

primary

#1F3C96

secondary

#BFA452

accent

#BF3FE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1F3C96

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

Preview Lab → · Contrast checker → · Palette generator →