#1F2073#1F2073

#1F2073 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.7% C 0.138 H 274.1°. Best body text is #FFFFFF at 13.89:1 contrast (WCAG AA passes).

Color values

HEX	#1F2073
RGB	rgb(31, 32, 115)
HSL	hsl(239, 58%, 29%)
HSV	hsv(239, 73%, 45%)
CMYK	cmyk(73%, 72.2%, 0%, 54.9%)
CIE-LAB	lab(18.20, 29.03, -47.65)
CIE-LCH	lch(18.20, 55.79, 301.35°)
OKLab	oklab(30.69% 0.0099 -0.1377)
OKLCH	oklch(30.69% 0.138 274.1)
XYZ	xyz(4.1751, 2.5617, 16.4908)
Luminance	0.0256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2073 #73721F

analogous

#1F4A73 #1F2073 #481F73

triadic

#1F2073 #731F20 #20731F

tetradic

#1F2073 #731F4A #73721F #1F7348

square

#1F2073 #731F4A #73721F #1F7348

split-complementary

#1F2073 #73481F #4A731F

monochromatic

#060718 #121343 #1F2073 #2C2DA3 #4142CC

Accessibility & contrast

On white

13.89

#1F2073 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1F2073 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2073

13.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2073	#FFFFFF	#000000	##FFFFFF
##1F2073	1.00	13.89	1.51	13.89
#FFFFFF	13.89	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003076

Deuteranopia (green-blind)

#002871

Tritanopia (blue-blind)

#003747

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1f2073;
/* rgb */ color: rgb(31, 32, 115);
/* oklch */ color: oklch(30.7% 0.138 274.1);

Tailwind

colors: {
  custom: {
    50: '#685c9c',
    500: '#1f2073',
    950: '#000000',
  },
}

SCSS

$custom: #1f2073;
$custom-light: #685c9c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2073",
  "rgb": {
    "r": 31,
    "g": 32,
    "b": 115
  },
  "hsl": {
    "h": 239.286,
    "s": 57.534,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30689,
    "c": 0.13808,
    "h": 274.1
  },
  "luminance": 0.02562
}

Semantic roles & 50–950 ramp

primary

#1F2073

secondary

#A7A647

accent

#DF47E1

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1F2073

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

Preview Lab → · Contrast checker → · Palette generator →