#1F1785#1F1785

#1F1785 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.4% C 0.171 H 273.6°. Best body text is #FFFFFF at 13.82:1 contrast (WCAG AA passes).

Color values

HEX	#1F1785
RGB	rgb(31, 23, 133)
HSL	hsl(244, 71%, 31%)
HSV	hsv(244, 83%, 52%)
CMYK	cmyk(76.7%, 82.7%, 0%, 47.8%)
CIE-LAB	lab(18.35, 40.57, -58.87)
CIE-LCH	lch(18.35, 71.49, 304.57°)
OKLab	oklab(31.4% 0.0108 -0.1703)
OKLCH	oklch(31.4% 0.171 273.6)
XYZ	xyz(5.1037, 2.5970, 22.4181)
Luminance	0.0260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1785 #7D8517

analogous

#174685 #1F1785 #561785

triadic

#1F1785 #851F17 #17851F

tetradic

#1F1785 #851746 #7D8517 #178556

square

#1F1785 #851746 #7D8517 #178556

split-complementary

#1F1785 #855617 #468517

monochromatic

#07051D #130E51 #1F1785 #2B20B9 #453ADD

Accessibility & contrast

On white

13.82

#1F1785 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1F1785 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1785

13.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1785	#FFFFFF	#000000	##FFFFFF
##1F1785	1.00	13.82	1.52	13.82
#FFFFFF	13.82	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003288

Deuteranopia (green-blind)

#002783

Tritanopia (blue-blind)

#00394F

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1f1785;
/* rgb */ color: rgb(31, 23, 133);
/* oklch */ color: oklch(31.4% 0.171 273.6);

Tailwind

colors: {
  custom: {
    50: '#6e57aa',
    500: '#1f1785',
    950: '#000000',
  },
}

SCSS

$custom: #1f1785;
$custom-light: #6e57aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1785",
  "rgb": {
    "r": 31,
    "g": 23,
    "b": 133
  },
  "hsl": {
    "h": 244.364,
    "s": 70.513,
    "l": 30.588
  },
  "oklch": {
    "l": 0.31399,
    "c": 0.17064,
    "h": 273.6
  },
  "luminance": 0.02598
}

Semantic roles & 50–950 ramp

primary

#1F1785

secondary

#B0B93F

accent

#ED3BE0

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1F1785

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

Preview Lab → · Contrast checker → · Palette generator →