#011331#011331

#011331 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.3% C 0.066 H 257.5°. Best body text is #FFFFFF at 18.44:1 contrast (WCAG AA passes).

Color values

HEX#011331
RGBrgb(1, 19, 49)
HSLhsl(218, 96%, 10%)
HSVhsv(218, 98%, 19%)
CMYKcmyk(98%, 61.2%, 0%, 80.8%)
CIE-LABlab(6.27, 5.74, -21.99)
CIE-LCHlch(6.27, 22.73, 284.63°)
OKLaboklab(19.27% -0.0142 -0.0641)
OKLCHoklch(19.27% 0.066 257.5)
XYZxyz(0.7996, 0.6938, 2.9969)
Luminance0.0069 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#011331 #311F01
analogous
#012B31 #011331 #070131
triadic
#011331 #310113 #133101
tetradic
#011331 #31012B #311F01 #013107
square
#011331 #31012B #311F01 #013107
split-complementary
#011331 #310701 #2B3101
monochromatic
#010C1E #010C1E #011331 #022A6D #0342A9

Accessibility & contrast

On white

18.44
#011331 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.14
#011331 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #011331
18.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##011331#FFFFFF#000000##FFFFFF
##0113311.0018.441.1418.44
#FFFFFF18.441.0021.001.00
#0000001.1421.001.0021.00
##FFFFFF18.441.0021.001.00

Color blindness preview

Protanopia (red-blind)
#021632
Deuteranopia (green-blind)
#001230
Tritanopia (blue-blind)
#001A1F
Achromatopsia (no color)
#141414

Design tokens & code

CSS
--color: #011331;
/* rgb */ color: rgb(1, 19, 49);
/* oklch */ color: oklch(19.3% 0.066 257.5);
Tailwind
colors: {
  custom: {
    50: '#4a5069',
    500: '#011331',
    950: '#000000',
  },
}
SCSS
$custom: #011331;
$custom-light: #4a5069;
$custom-dark: #000000;
JSON
{
  "hex": "#011331",
  "rgb": {
    "r": 1,
    "g": 19,
    "b": 49
  },
  "hsl": {
    "h": 217.5,
    "s": 96,
    "l": 9.804
  },
  "oklch": {
    "l": 0.19269,
    "c": 0.0657,
    "h": 257.5
  },
  "luminance": 0.00694
}

Semantic roles & 50–950 ramp

primary
#011331
secondary
#775317
accent
#AF29FF
background
#F4F4F6
surface
#E7E7EB
border
#C3C3C6
text
#010206
muted
#77787A

Preview Lab

Preview with #011331

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

Preview Lab → · Contrast checker → · Palette generator →

#011331 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva