Nerdulator> put something in

Recognised as Colour

#381F20

  • #381F20
  • Red
  • Dark
  • Nearest: Black

#381F20 is a red with RGB values 56, 31, 32 and HSL 358°, 29%, 17%. It is a dark colour, so white text on it reaches 15.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#381F20#381F20
HEX#381F20
RGBrgb(56, 31, 32)
RGB (0–1)0.2196, 0.1216, 0.1255
RGB percentages22%, 12.2%, 12.5%
HSLhsl(357.6, 28.7%, 17.1%)
HSV / HSBhsv(357.6, 44.6%, 22%)
CMYK0%, 44.6%, 42.9%, 78%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,677,984
CSS custom property--colour: #381F20;

Brightness & contrast

Relative luminance0.01925WCAG 2.x, 0 is black and 1 is white
Perceived brightness40.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.16:1
Contrast with white15.16:1WCAG normal text: AAA
Contrast with black1.39:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#C7E0DF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#242320no red cones; affects about 1% of men; ΔE 12.8 from the original
Deuteranopia#2A2820no green cones; the most common form, about 1% of men; ΔE 13.2 from the original
Tritanopia#3D1C1Fno blue cones; rare, and affects men and women equally; ΔE 4.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.16:1WCAG large text: AAA
Contrast with black, large text1.39:1WCAG large text: Fail

Named colours

Black · ΔE 20Dark slate grey · ΔE 30.1Dim grey · ΔE 32.1Gray · ΔE 40.7Slate grey · ΔE 43.1Saddle brown · ΔE 45.1
Nearest named CSS colourBlack (#000000)ΔE 19.98, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1F3837
Analogous#381F2D, #382B1F
Triadic#20381F, #1F2038
Split complementary#1F382B, #1F2C38
Tetradic#2C381F, #1F3837, #2B1F38

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B17275
Lighter +30%#9A5658
Lighter +20%#7A4346
Lighter +10%#593133
Darker −10%#170D0D
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#431416
Less saturated −25%#2D2A2A

Channel breakdown

R56
G31
B32
Red56 (22%)
Green31 (12.2%)
Blue32 (12.5%)
Hue357.6°
Saturation (HSL)28.74%
Lightness17.06%
Dominant channelRed
Hex per channelR 38 · G 1F · B 20

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 “381f20” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.