Nerdulator> put something in

Recognised as Colour

#400F00

  • #400F00
  • Red
  • Dark
  • Nearest: Black

#400F00 is a red with RGB values 64, 15, 0 and HSL 14°, 100%, 13%. It is a dark colour, so white text on it reaches 16.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#400F00#400F00
HEX#400F00
RGBrgb(64, 15, 0)
RGB (0–1)0.251, 0.0588, 0
RGB percentages25.1%, 5.9%, 0%
HSLhsl(14.1, 100%, 12.5%)
HSV / HSBhsv(14.1, 100%, 25.1%)
CMYK0%, 76.6%, 100%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,198,144
CSS custom property--colour: #400F00;

Brightness & contrast

Relative luminance0.01432WCAG 2.x, 0 is black and 1 is white
Perceived brightness36.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.33:1
Contrast with white16.33:1WCAG normal text: AAA
Contrast with black1.29:1WCAG normal text: Fail
Greyscale equivalent#181818
Inverted#BFF0FF

Colour vision & accessibility

Protanopia#1E1900no red cones; affects about 1% of men; ΔE 25.3 from the original
Deuteranopia#2A2400no green cones; the most common form, about 1% of men; ΔE 25.2 from the original
Tritanopia#48010Cno blue cones; rare, and affects men and women equally; ΔE 10.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.33:1WCAG large text: AAA
Contrast with black, large text1.29:1WCAG large text: Fail

Named colours

Nearest named CSS colourBlack (#000000)ΔE 32, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#003140
Analogous#400011, #402F00
Triadic#00400F, #0F0040
Split complementary#00402F, #001140
Tetradic#114000, #003140, #2F0040

Tints, shades & saturation

Lighter +40%#FF460D
Lighter +30%#D93300
Lighter +20%#A62700
Lighter +10%#731B00
Darker −10%#0D0300
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#400F00
Less saturated −25%#381308

Channel breakdown

R64
G15
B0
Red64 (25.1%)
Green15 (5.9%)
Blue0 (0%)
Hue14.06°
Saturation (HSL)100%
Lightness12.55%
Dominant channelRed
Hex per channelR 40 · G 0F · B 00

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “400f00” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.