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Recognised as Colour

#A45A51

  • #A45A51
  • Red
  • Dark
  • Nearest: Indian red

#A45A51 is a red with RGB values 164, 90, 81 and HSL 7°, 34%, 48%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#A45A51#A45A51
HEX#A45A51
RGBrgb(164, 90, 81)
RGB (0–1)0.6431, 0.3529, 0.3176
RGB percentages64.3%, 35.3%, 31.8%
HSLhsl(6.5, 33.9%, 48%)
HSV / HSBhsv(6.5, 50.6%, 64.3%)
CMYK0%, 45.1%, 50.6%, 35.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,771,025
CSS custom property--colour: #A45A51;

Brightness & contrast

Relative luminance0.15799WCAG 2.x, 0 is black and 1 is white
Perceived brightness116.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.05:1
Contrast with white5.05:1WCAG normal text: AA
Contrast with black4.16:1WCAG normal text: Fail
Greyscale equivalent#696969
Inverted#5BA5AE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6B6550no red cones; affects about 1% of men; ΔE 31.5 from the original
Deuteranopia#7D7550no green cones; the most common form, about 1% of men; ΔE 32.5 from the original
Tritanopia#B24F58no blue cones; rare, and affects men and women equally; ΔE 12.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.05:1WCAG large text: AAA
Contrast with black, large text4.16:1WCAG large text: AA

Named colours

Indian red · ΔE 17.3Sienna · ΔE 17.3Light coral · ΔE 23.7Rosy brown · ΔE 24.1Saddle brown · ΔE 24.4Dark salmon · ΔE 24.9
Nearest named CSS colourIndian red (#CD5C5C)ΔE 17.25, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#519BA4
Analogous#A45171, #A48451
Triadic#51A45A, #5A51A4
Split complementary#51A484, #5172A4
Tetradic#72A451, #519BA4, #8451A4

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EBD8D6
Lighter +30%#DAB8B4
Lighter +20%#C99892
Lighter +10%#B87870
Darker −10%#824740
Darker −20%#60352F
Darker −30%#3E221E
Darker −40%#1B0F0E
More saturated +25%#C34232
Less saturated −25%#857270

Channel breakdown

R164
G90
B81
Red164 (64.3%)
Green90 (35.3%)
Blue81 (31.8%)
Hue6.51°
Saturation (HSL)33.88%
Lightness48.04%
Dominant channelRed
Hex per channelR A4 · G 5A · B 51

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Every value on this page was computed from “a45a51” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.