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Recognised as Colour

#37232D

  • #37232D
  • Red
  • Dark
  • Nearest: Black

#37232D is a red with RGB values 55, 35, 45 and HSL 330°, 22%, 18%. It is a dark colour, so white text on it reaches 14.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#37232D#37232D
HEX#37232D
RGBrgb(55, 35, 45)
RGB (0–1)0.2157, 0.1373, 0.1765
RGB percentages21.6%, 13.7%, 17.6%
HSLhsl(330, 22.2%, 17.6%)
HSV / HSBhsv(330, 36.4%, 21.6%)
CMYK0%, 36.4%, 18.2%, 78.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,613,485
CSS custom property--colour: #37232D;

Brightness & contrast

Relative luminance0.02204WCAG 2.x, 0 is black and 1 is white
Perceived brightness43.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.58:1
Contrast with white14.58:1WCAG normal text: AAA
Contrast with black1.44:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#C8DCD2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#25272Dno red cones; affects about 1% of men; ΔE 10.9 from the original
Deuteranopia#292A2Cno green cones; the most common form, about 1% of men; ΔE 11.5 from the original
Tritanopia#3A2326no blue cones; rare, and affects men and women equally; ΔE 5.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.58:1WCAG large text: AAA
Contrast with black, large text1.44:1WCAG large text: Fail

Named colours

Black · ΔE 20.3Dark slate grey · ΔE 27.5Dim grey · ΔE 30.3Gray · ΔE 38.9Slate grey · ΔE 39.6Light slate grey · ΔE 42.5
Nearest named CSS colourBlack (#000000)ΔE 20.28, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#23372D
Analogous#372337, #372323
Triadic#2D3723, #232D37
Split complementary#233723, #233737
Tetradic#373723, #23372D, #232337

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AB7B93
Lighter +30%#945F7A
Lighter +20%#754B60
Lighter +10%#563747
Darker −10%#180F14
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#42182D
Less saturated −25%#2D2D2D

Channel breakdown

R55
G35
B45
Red55 (21.6%)
Green35 (13.7%)
Blue45 (17.6%)
Hue330°
Saturation (HSL)22.22%
Lightness17.65%
Dominant channelRed
Hex per channelR 37 · G 23 · B 2D

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Every value on this page was computed from “37232d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.