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Recognised as Colour

#451C28

  • #451C28
  • Red
  • Dark
  • Nearest: Black

#451C28 is a red with RGB values 69, 28, 40 and HSL 342°, 42%, 19%. It is a dark colour, so white text on it reaches 14.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#451C28#451C28
HEX#451C28
RGBrgb(69, 28, 40)
RGB (0–1)0.2706, 0.1098, 0.1569
RGB percentages27.1%, 11%, 15.7%
HSLhsl(342.4, 42.3%, 19%)
HSV / HSBhsv(342.4, 59.4%, 27.1%)
CMYK0%, 59.4%, 42%, 72.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,529,192
CSS custom property--colour: #451C28;

Brightness & contrast

Relative luminance0.02249WCAG 2.x, 0 is black and 1 is white
Perceived brightness45.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.48:1
Contrast with white14.48:1WCAG normal text: AAA
Contrast with black1.45:1WCAG normal text: Fail
Greyscale equivalent#262626
Inverted#BAE3D7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#232428no red cones; affects about 1% of men; ΔE 21.2 from the original
Deuteranopia#2E2C27no green cones; the most common form, about 1% of men; ΔE 21.5 from the original
Tritanopia#4B1820no blue cones; rare, and affects men and women equally; ΔE 7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.48:1WCAG large text: AAA
Contrast with black, large text1.45:1WCAG large text: Fail

Named colours

Black · ΔE 27Dim grey · ΔE 34.9Dark slate grey · ΔE 36.3Gray · ΔE 42.5Sienna · ΔE 44.4Slate grey · ΔE 44.6
Nearest named CSS colourBlack (#000000)ΔE 27.05, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1C4539
Analogous#451C3C, #45251C
Triadic#28451C, #1C2845
Split complementary#1C4525, #1C3C45
Tetradic#3D451C, #1C4539, #251C45

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C36A84
Lighter +30%#B24867
Lighter +20%#8E3952
Lighter +10%#692B3D
Darker −10%#210D13
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#511023
Less saturated −25%#39282D

Channel breakdown

R69
G28
B40
Red69 (27.1%)
Green28 (11%)
Blue40 (15.7%)
Hue342.44°
Saturation (HSL)42.27%
Lightness19.02%
Dominant channelRed
Hex per channelR 45 · G 1C · B 28

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Every value on this page was computed from “451c28” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.