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Recognised as Colour

#2A0500

  • #2A0500
  • Red
  • Dark
  • Nearest: Black

#2A0500 is a red with RGB values 42, 5, 0 and HSL 7°, 100%, 8%. It is a dark colour, so white text on it reaches 18.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#2A0500#2A0500
HEX#2A0500
RGBrgb(42, 5, 0)
RGB (0–1)0.1647, 0.0196, 0
RGB percentages16.5%, 2%, 0%
HSLhsl(7.1, 100%, 8.2%)
HSV / HSBhsv(7.1, 100%, 16.5%)
CMYK0%, 88.1%, 100%, 83.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,753,792
CSS custom property--colour: #2A0500;

Brightness & contrast

Relative luminance0.00601WCAG 2.x, 0 is black and 1 is white
Perceived brightness23.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.75:1
Contrast with white18.75:1WCAG normal text: AAA
Contrast with black1.12:1WCAG normal text: Fail
Greyscale equivalent#0D0D0D
Inverted#D5FAFF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#100C00no red cones; affects about 1% of men; ΔE 18.4 from the original
Deuteranopia#191500no green cones; the most common form, about 1% of men; ΔE 19.2 from the original
Tritanopia#2F0004no blue cones; rare, and affects men and women equally; ΔE 6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.75:1WCAG large text: AAA
Contrast with black, large text1.12:1WCAG large text: Fail

Named colours

Black · ΔE 20.2Dark slate grey · ΔE 40.9Dim grey · ΔE 43.6Saddle brown · ΔE 46.5Maroon · ΔE 47Sienna · ΔE 48.5
Nearest named CSS colourBlack (#000000)ΔE 20.21, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#00252A
Analogous#2A0010, #2A1A00
Triadic#002A05, #05002A
Split complementary#002A1A, #00102A
Tetradic#102A00, #00252A, #1A002A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F61D00
Lighter +30%#C31700
Lighter +20%#901100
Lighter +10%#5D0B00
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2A0500
Less saturated −25%#250905

Channel breakdown

R42
G5
B0
Red42 (16.5%)
Green5 (2%)
Blue0 (0%)
Hue7.14°
Saturation (HSL)100%
Lightness8.24%
Dominant channelRed
Hex per channelR 2A · G 05 · B 00

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Every value on this page was computed from “2a0500” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.