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Recognised as Colour

#451B30

  • #451B30
  • Red
  • Dark
  • Nearest: Black

#451B30 is a red with RGB values 69, 27, 48 and HSL 330°, 44%, 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

#451B30#451B30
HEX#451B30
RGBrgb(69, 27, 48)
RGB (0–1)0.2706, 0.1059, 0.1882
RGB percentages27.1%, 10.6%, 18.8%
HSLhsl(330, 43.7%, 18.8%)
HSV / HSBhsv(330, 60.9%, 27.1%)
CMYK0%, 60.9%, 30.4%, 72.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,528,944
CSS custom property--colour: #451B30;

Brightness & contrast

Relative luminance0.02262WCAG 2.x, 0 is black and 1 is white
Perceived brightness46 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.46:1
Contrast with white14.46:1WCAG normal text: AAA
Contrast with black1.45:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#BAE4CF

Colour vision & accessibility

Protanopia#202531no red cones; affects about 1% of men; ΔE 22.3 from the original
Deuteranopia#2B2C2Fno green cones; the most common form, about 1% of men; ΔE 22.8 from the original
Tritanopia#4A1923no blue cones; rare, and affects men and women equally; ΔE 9.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.46:1WCAG large text: AAA
Contrast with black, large text1.45:1WCAG large text: Fail

Named colours

Nearest named CSS colourBlack (#000000)ΔE 28.79, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#1B4530
Analogous#451B45, #451B1B
Triadic#30451B, #1B3045
Split complementary#1B451B, #1B4545
Tetradic#45451B, #1B4530, #1B1B45

Tints, shades & saturation

Lighter +40%#C46896
Lighter +30%#B3467D
Lighter +20%#8E3863
Lighter +10%#6A294A
Darker −10%#200D17
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#510F30
Less saturated −25%#392730

Channel breakdown

R69
G27
B48
Red69 (27.1%)
Green27 (10.6%)
Blue48 (18.8%)
Hue330°
Saturation (HSL)43.75%
Lightness18.82%
Dominant channelRed
Hex per channelR 45 · G 1B · B 30

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Every value on this page was computed from “451b30” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.