#1F117F#1F117F

#1F117F is a dark, vivid blue. Relative luminance 0.022; OKLCH L 30.0% C 0.168 H 275.0°. Best body text is #FFFFFF at 14.53:1 contrast (WCAG AA passes).

Color values

HEX	#1F117F
RGB	rgb(31, 17, 127)
HSL	hsl(248, 76%, 28%)
HSV	hsv(248, 87%, 50%)
CMYK	cmyk(75.6%, 86.6%, 0%, 50.2%)
CIE-LAB	lab(16.62, 41.53, -57.94)
CIE-LCH	lch(16.62, 71.29, 305.64°)
OKLab	oklab(29.99% 0.0146 -0.1675)
OKLCH	oklch(29.99% 0.168 275)
XYZ	xyz(4.5950, 2.2241, 20.2617)
Luminance	0.0222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F117F #717F11

analogous

#113A7F #1F117F #56117F

triadic

#1F117F #7F1F11 #117F1F

tetradic

#1F117F #7F113A #717F11 #117F56

square

#1F117F #7F113A #717F11 #117F56

split-complementary

#1F117F #7F5611 #3A7F11

monochromatic

#07041B #120A49 #1F117F #2C18B5 #4028E2

Accessibility & contrast

On white

14.53

#1F117F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1F117F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F117F

14.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F117F	#FFFFFF	#000000	##FFFFFF
##1F117F	1.00	14.53	1.45	14.53
#FFFFFF	14.53	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E82

Deuteranopia (green-blind)

#00247D

Tritanopia (blue-blind)

#00354A

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1f117f;
/* rgb */ color: rgb(31, 17, 127);
/* oklch */ color: oklch(30.0% 0.168 275.0);

Tailwind

colors: {
  custom: {
    50: '#6d54a5',
    500: '#1f117f',
    950: '#000000',
  },
}

SCSS

$custom: #1f117f;
$custom-light: #6d54a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f117f",
  "rgb": {
    "r": 31,
    "g": 17,
    "b": 127
  },
  "hsl": {
    "h": 247.636,
    "s": 76.389,
    "l": 28.235
  },
  "oklch": {
    "l": 0.29987,
    "c": 0.16811,
    "h": 275
  },
  "luminance": 0.02225
}

Semantic roles & 50–950 ramp

primary

#1F117F

secondary

#A5B537

accent

#F335DB

background

#F7F5FA

surface

#EDE8F4

border

#C8C4CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1F117F

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

Preview Lab → · Contrast checker → · Palette generator →