#1F135D#1F135D

#1F135D is a dark, vivid blue. Relative luminance 0.015; OKLCH L 26.2% C 0.123 H 281.1°. Best body text is #FFFFFF at 16.04:1 contrast (WCAG AA passes).

Color values

HEX	#1F135D
RGB	rgb(31, 19, 93)
HSL	hsl(250, 66%, 22%)
HSV	hsv(250, 80%, 36%)
CMYK	cmyk(66.7%, 79.6%, 0%, 63.5%)
CIE-LAB	lab(12.90, 29.34, -41.90)
CIE-LCH	lch(12.90, 51.15, 305.00°)
OKLab	oklab(26.21% 0.0237 -0.1209)
OKLCH	oklch(26.21% 0.123 281.1)
XYZ	xyz(2.7731, 1.5472, 10.5063)
Luminance	0.0155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F135D #515D13

analogous

#132C5D #1F135D #44135D

triadic

#1F135D #5D1F13 #135D1F

tetradic

#1F135D #5D132C #515D13 #135D44

square

#1F135D #5D132C #515D13 #135D44

split-complementary

#1F135D #5D4413 #2C5D13

monochromatic

#080519 #0E092A #1F135D #301D90 #4128C3

Accessibility & contrast

On white

16.04

#1F135D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#1F135D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F135D

16.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F135D	#FFFFFF	#000000	##FFFFFF
##1F135D	1.00	16.04	1.31	16.04
#FFFFFF	16.04	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245F

Deuteranopia (green-blind)

#001F5C

Tritanopia (blue-blind)

#002837

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #1f135d;
/* rgb */ color: rgb(31, 19, 93);
/* oklch */ color: oklch(26.2% 0.123 281.1);

Tailwind

colors: {
  custom: {
    50: '#64528c',
    500: '#1f135d',
    950: '#000000',
  },
}

SCSS

$custom: #1f135d;
$custom-light: #64528c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f135d",
  "rgb": {
    "r": 31,
    "g": 19,
    "b": 93
  },
  "hsl": {
    "h": 249.73,
    "s": 66.071,
    "l": 21.961
  },
  "oklch": {
    "l": 0.26206,
    "c": 0.12316,
    "h": 281.1
  },
  "luminance": 0.01547
}

Semantic roles & 50–950 ramp

primary

#1F135D

secondary

#869537

accent

#E93FCD

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1F135D

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

Preview Lab → · Contrast checker → · Palette generator →