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Recognised as Colour

#AD645F

  • #AD645F
  • Red
  • Dark
  • Nearest: Indian red

#AD645F is a red with RGB values 173, 100, 95 and HSL 4°, 32%, 53%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#AD645F#AD645F
HEX#AD645F
RGBrgb(173, 100, 95)
RGB (0–1)0.6784, 0.3922, 0.3725
RGB percentages67.8%, 39.2%, 37.3%
HSLhsl(3.8, 32.2%, 52.5%)
HSV / HSBhsv(3.8, 45.1%, 67.8%)
CMYK0%, 42.2%, 45.1%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,363,423
CSS custom property--colour: #AD645F;

Brightness & contrast

Relative luminance0.18825WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.76:1
Contrast with white4.41:1WCAG normal text: Fail
Contrast with black4.76:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#529BA0

Colour vision & accessibility

Protanopia#746F5Eno red cones; affects about 1% of men; ΔE 30.7 from the original
Deuteranopia#867E5Eno green cones; the most common form, about 1% of men; ΔE 31.3 from the original
Tritanopia#BB5A63no blue cones; rare, and affects men and women equally; ΔE 11.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.41:1WCAG large text: AA
Contrast with black, large text4.76:1WCAG large text: AAA

Named colours

Nearest named CSS colourIndian red (#CD5C5C)ΔE 17.5, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#5FA8AD
Analogous#AD5F81, #AD8B5F
Triadic#5FAD64, #645FAD
Split complementary#5FAD8B, #5F81AD
Tetradic#81AD5F, #5FA8AD, #8B5FAD

Tints, shades & saturation

Lighter +40%#F2E7E6
Lighter +30%#E1C6C4
Lighter +20%#D0A5A2
Lighter +10%#BE8581
Darker −10%#8F4E4A
Darker −20%#6E3C38
Darker −30%#4C2927
Darker −40%#2A1716
More saturated +25%#CB4A41
Less saturated −25%#8F7E7D

Channel breakdown

R173
G100
B95
Red173 (67.8%)
Green100 (39.2%)
Blue95 (37.3%)
Hue3.85°
Saturation (HSL)32.23%
Lightness52.55%
Dominant channelRed
Hex per channelR AD · G 64 · B 5F

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Every value on this page was computed from “ad645f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.