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Colour

#2D0000

  • #2D0000
  • Red
  • Dark
  • Nearest: Black

#2D0000 is a red with RGB values 45, 0, 0 and HSL 0°, 100%, 9%. It is a dark colour, so white text on it reaches 18.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#2D0000#2D0000
HEX#2D0000
RGBrgb(45, 0, 0)
RGB (0–1)0.1765, 0, 0
RGB percentages17.6%, 0%, 0%
HSLhsl(0, 100%, 8.8%)
HSV / HSBhsv(0, 100%, 17.6%)
CMYK0%, 100%, 100%, 82.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,949,120
CSS custom property--colour: #2D0000;

Brightness & contrast

Relative luminance0.00558WCAG 2.x, 0 is black and 1 is white
Perceived brightness24.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.89:1
Contrast with white18.89:1WCAG normal text: AAA
Contrast with black1.11:1WCAG normal text: Fail
Greyscale equivalent#0A0A0A
Inverted#D2FFFF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0D0A00no red cones; affects about 1% of men; ΔE 22.8 from the original
Deuteranopia#191500no green cones; the most common form, about 1% of men; ΔE 23.5 from the original
Tritanopia#330000no blue cones; rare, and affects men and women equally; ΔE 4.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.89:1WCAG large text: AAA
Contrast with black, large text1.11:1WCAG large text: Fail

Named colours

Black · ΔE 23.7Dark slate grey · ΔE 44.1Maroon · ΔE 44.9Dim grey · ΔE 45.7Saddle brown · ΔE 46.5Sienna · ΔE 48.2
Nearest named CSS colourBlack (#000000)ΔE 23.75, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#002D2D
Analogous#2D0017, #2D1700
Triadic#002D00, #00002D
Split complementary#002D17, #00172D
Tetradic#172D00, #002D2D, #17002D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F90000
Lighter +30%#C60000
Lighter +20%#930000
Lighter +10%#600000
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2D0000
Less saturated −25%#270606

Channel breakdown

R45
G0
B0
Red45 (17.6%)
Green0 (0%)
Blue0 (0%)
Hue0°
Saturation (HSL)100%
Lightness8.82%
Dominant channelRed
Hex per channelR 2D · G 00 · B 00

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Every value on this page was computed from “2d0000” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.