#1F1B86#1F1B86

#1F1B86 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.0% C 0.168 H 273.1°. Best body text is #FFFFFF at 13.47:1 contrast (WCAG AA passes).

Color values

HEX	#1F1B86
RGB	rgb(31, 27, 134)
HSL	hsl(242, 66%, 32%)
HSV	hsv(242, 80%, 53%)
CMYK	cmyk(76.9%, 79.9%, 0%, 47.5%)
CIE-LAB	lab(19.21, 38.77, -58.08)
CIE-LCH	lch(19.21, 69.83, 303.72°)
OKLab	oklab(32.03% 0.009 -0.1681)
OKLCH	oklch(32.03% 0.168 273.1)
XYZ	xyz(5.2586, 2.7959, 22.8121)
Luminance	0.0280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1B86 #82861B

analogous

#1B4D86 #1F1B86 #551B86

triadic

#1F1B86 #861F1B #1B861F

tetradic

#1F1B86 #861B4D #82861B #1B8655

square

#1F1B86 #861B4D #82861B #1B8655

split-complementary

#1F1B86 #86551B #4D861B

monochromatic

#070620 #131153 #1F1B86 #2B25B9 #4842D9

Accessibility & contrast

On white

13.47

#1F1B86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1F1B86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1B86

13.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1B86	#FFFFFF	#000000	##FFFFFF
##1F1B86	1.00	13.47	1.56	13.47
#FFFFFF	13.47	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003489

Deuteranopia (green-blind)

#002984

Tritanopia (blue-blind)

#003B50

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1f1b86;
/* rgb */ color: rgb(31, 27, 134);
/* oklch */ color: oklch(32.0% 0.168 273.1);

Tailwind

colors: {
  custom: {
    50: '#6e5aaa',
    500: '#1f1b86',
    950: '#000000',
  },
}

SCSS

$custom: #1f1b86;
$custom-light: #6e5aaa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1b86",
  "rgb": {
    "r": 31,
    "g": 27,
    "b": 134
  },
  "hsl": {
    "h": 242.243,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.32031,
    "c": 0.16831,
    "h": 273.1
  },
  "luminance": 0.02796
}

Semantic roles & 50–950 ramp

primary

#1F1B86

secondary

#B5B944

accent

#E93EE3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1F1B86

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

Preview Lab → · Contrast checker → · Palette generator →