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Recognised as Colour

#371B26

  • #371B26
  • Red
  • Dark
  • Nearest: Black

#371B26 is a red with RGB values 55, 27, 38 and HSL 336°, 34%, 16%. It is a dark colour, so white text on it reaches 15.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#371B26#371B26
HEX#371B26
RGBrgb(55, 27, 38)
RGB (0–1)0.2157, 0.1059, 0.149
RGB percentages21.6%, 10.6%, 14.9%
HSLhsl(336.4, 34.1%, 16.1%)
HSV / HSBhsv(336.4, 50.9%, 21.6%)
CMYK0%, 50.9%, 30.9%, 78.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,611,430
CSS custom property--colour: #371B26;

Brightness & contrast

Relative luminance0.01736WCAG 2.x, 0 is black and 1 is white
Perceived brightness38.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.59:1
Contrast with white15.59:1WCAG normal text: AAA
Contrast with black1.35:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#C8E4D9

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1F2126no red cones; affects about 1% of men; ΔE 15.3 from the original
Deuteranopia#262625no green cones; the most common form, about 1% of men; ΔE 15.9 from the original
Tritanopia#3B1A1Fno blue cones; rare, and affects men and women equally; ΔE 5.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.59:1WCAG large text: AAA
Contrast with black, large text1.35:1WCAG large text: Fail

Named colours

Black · ΔE 21Dark slate grey · ΔE 32.3Dim grey · ΔE 34.1Gray · ΔE 42.5Slate grey · ΔE 43.6Dark slateblue · ΔE 45.3
Nearest named CSS colourBlack (#000000)ΔE 20.97, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1B372C
Analogous#371B34, #371E1B
Triadic#26371B, #1B2637
Split complementary#1B371E, #1B3437
Tetradic#34371B, #1B372C, #1E1B37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B56987
Lighter +30%#9E4D6D
Lighter +20%#7B3D55
Lighter +10%#592C3E
Darker −10%#150A0E
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#411124
Less saturated −25%#2D2528

Channel breakdown

R55
G27
B38
Red55 (21.6%)
Green27 (10.6%)
Blue38 (14.9%)
Hue336.43°
Saturation (HSL)34.15%
Lightness16.08%
Dominant channelRed
Hex per channelR 37 · G 1B · B 26

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Every value on this page was computed from “371b26” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.