Nerdulator> put something in

Colour

#663F00

  • #663F00
  • Orange
  • Dark
  • Nearest: Saddle brown

#663F00 is a orange with RGB values 102, 63, 0 and HSL 37°, 100%, 20%. It is a dark colour, so white text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Saddle brown.

Colour values

#663F00#663F00
HEX#663F00
RGBrgb(102, 63, 0)
RGB (0–1)0.4, 0.2471, 0
RGB percentages40%, 24.7%, 0%
HSLhsl(37.1, 100%, 20%)
HSV / HSBhsv(37.1, 100%, 40%)
CMYK0%, 38.2%, 100%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,700,800
CSS custom property--colour: #663F00;

Brightness & contrast

Relative luminance0.0638WCAG 2.x, 0 is black and 1 is white
Perceived brightness73.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.23:1
Contrast with white9.23:1WCAG normal text: AAA
Contrast with black2.28:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#99C0FF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4C4200no red cones; affects about 1% of men; ΔE 15.8 from the original
Deuteranopia#554B02no green cones; the most common form, about 1% of men; ΔE 16.1 from the original
Tritanopia#703535no blue cones; rare, and affects men and women equally; ΔE 31.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.23:1WCAG large text: AAA
Contrast with black, large text2.28:1WCAG large text: Fail

Named colours

Saddle brown · ΔE 15.8Sienna · ΔE 22.1Peru · ΔE 33.6Dark olivegreen · ΔE 34.7Maroon · ΔE 36.1Dark goldenrod · ΔE 36.7
Nearest named CSS colourSaddle brown (#8B4513)ΔE 15.83, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#002766
Analogous#660C00, #5A6600
Triadic#00663F, #3F0066
Split complementary#005A66, #0C0066
Tetradic#00660C, #002766, #66005A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFB133
Lighter +30%#FF9E00
Lighter +20%#CC7E00
Lighter +10%#995F00
Darker −10%#332000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#663F00
Less saturated −25%#593C0D

Channel breakdown

R102
G63
B0
Red102 (40%)
Green63 (24.7%)
Blue0 (0%)
Hue37.06°
Saturation (HSL)100%
Lightness20%
Dominant channelRed
Hex per channelR 66 · G 3F · 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 “663f00” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.