Nerdulator> put something in

Recognised as Colour

#644A13

  • #644A13
  • Orange
  • Dark
  • Nearest: Saddle brown

#644A13 is a orange with RGB values 100, 74, 19 and HSL 41°, 68%, 23%. It is a dark colour, so white text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Saddle brown.

Colour values

#644A13#644A13
HEX#644A13
RGBrgb(100, 74, 19)
RGB (0–1)0.3922, 0.2902, 0.0745
RGB percentages39.2%, 29%, 7.5%
HSLhsl(40.7, 68.1%, 23.3%)
HSV / HSBhsv(40.7, 81%, 39.2%)
CMYK0%, 26%, 81%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,572,563
CSS custom property--colour: #644A13;

Brightness & contrast

Relative luminance0.07654WCAG 2.x, 0 is black and 1 is white
Perceived brightness79 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.3:1
Contrast with white8.3:1WCAG normal text: AAA
Contrast with black2.53:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#9BB5EC

Colour vision & accessibility

Protanopia#554A0Ano red cones; affects about 1% of men; ΔE 8.3 from the original
Deuteranopia#5B5115no green cones; the most common form, about 1% of men; ΔE 8.7 from the original
Tritanopia#6D423Fno blue cones; rare, and affects men and women equally; ΔE 28.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.3:1WCAG large text: AAA
Contrast with black, large text2.53:1WCAG large text: Fail

Named colours

Nearest named CSS colourSaddle brown (#8B4513)ΔE 22.45, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#132D64
Analogous#642213, #556413
Triadic#13644A, #4A1364
Split complementary#135564, #221364
Tetradic#136422, #132D64, #641355

Tints, shades & saturation

Lighter +40%#E1B862
Lighter +30%#D9A537
Lighter +20%#BA8923
Lighter +10%#8F6A1B
Darker −10%#392A0B
Darker −20%#0E0B03
Darker −30%#000000
Darker −40%#000000
More saturated +25%#734F04
Less saturated −25%#554522

Channel breakdown

R100
G74
B19
Red100 (39.2%)
Green74 (29%)
Blue19 (7.5%)
Hue40.74°
Saturation (HSL)68.07%
Lightness23.33%
Dominant channelRed
Hex per channelR 64 · G 4A · B 13

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 “644a13” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.