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Recognised as Colour

#2B0504

  • #2B0504
  • Red
  • Dark
  • Nearest: Black

#2B0504 is a red with RGB values 43, 5, 4 and HSL 2°, 83%, 9%. It is a dark colour, so white text on it reaches 18.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#2B0504#2B0504
HEX#2B0504
RGBrgb(43, 5, 4)
RGB (0–1)0.1686, 0.0196, 0.0157
RGB percentages16.9%, 2%, 1.6%
HSLhsl(1.5, 83%, 9.2%)
HSV / HSBhsv(1.5, 90.7%, 16.9%)
CMYK0%, 88.4%, 90.7%, 83.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,819,332
CSS custom property--colour: #2B0504;

Brightness & contrast

Relative luminance0.00631WCAG 2.x, 0 is black and 1 is white
Perceived brightness23.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.65:1
Contrast with white18.65:1WCAG normal text: AAA
Contrast with black1.13:1WCAG normal text: Fail
Greyscale equivalent#0D0D0D
Inverted#D4FAFB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#100D04no red cones; affects about 1% of men; ΔE 19.3 from the original
Deuteranopia#191603no green cones; the most common form, about 1% of men; ΔE 20.6 from the original
Tritanopia#300005no blue cones; rare, and affects men and women equally; ΔE 5.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.65:1WCAG large text: AAA
Contrast with black, large text1.13:1WCAG large text: Fail

Named colours

Black · ΔE 20.8Dark slate grey · ΔE 41.2Dim grey · ΔE 43.6Saddle brown · ΔE 47Maroon · ΔE 47Sienna · ΔE 48.7
Nearest named CSS colourBlack (#000000)ΔE 20.77, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#042A2B
Analogous#2B0417, #2B1904
Triadic#042B05, #05042B
Split complementary#042B19, #04162B
Tetradic#162B04, #042A2B, #18042B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E61B15
Lighter +30%#B71511
Lighter +20%#88100D
Lighter +10%#5A0A08
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2F0100
Less saturated −25%#250B0A

Channel breakdown

R43
G5
B4
Red43 (16.9%)
Green5 (2%)
Blue4 (1.6%)
Hue1.54°
Saturation (HSL)82.98%
Lightness9.22%
Dominant channelRed
Hex per channelR 2B · G 05 · B 04

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Every value on this page was computed from “2b0504” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.