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Recognised as Colour

#1F210B

  • #1F210B
  • Yellow
  • Dark
  • Nearest: Black

#1F210B is a yellow with RGB values 31, 33, 11 and HSL 65°, 50%, 9%. It is a dark colour, so white text on it reaches 16.4:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1F210B#1F210B
HEX#1F210B
RGBrgb(31, 33, 11)
RGB (0–1)0.1216, 0.1294, 0.0431
RGB percentages12.2%, 12.9%, 4.3%
HSLhsl(65.5, 50%, 8.6%)
HSV / HSBhsv(65.5, 66.7%, 12.9%)
CMYK6.1%, 0%, 66.7%, 87.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,040,075
CSS custom property--colour: #1F210B;

Brightness & contrast

Relative luminance0.01403WCAG 2.x, 0 is black and 1 is white
Perceived brightness30.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.4:1
Contrast with white16.4:1WCAG normal text: AAA
Contrast with black1.28:1WCAG normal text: Fail
Greyscale equivalent#1F1F1F
Inverted#E0DEF4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#241F09no red cones; affects about 1% of men; ΔE 4 from the original
Deuteranopia#24200Cno green cones; the most common form, about 1% of men; ΔE 3.6 from the original
Tritanopia#211F1Cno blue cones; rare, and affects men and women equally; ΔE 12 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.4:1WCAG large text: AAA
Contrast with black, large text1.28:1WCAG large text: Fail

Named colours

Black · ΔE 18.5Dark slate grey · ΔE 26.4Dim grey · ΔE 35.4Dark olivegreen · ΔE 37.5Gray · ΔE 43.9Slate grey · ΔE 47.3
Nearest named CSS colourBlack (#000000)ΔE 18.51, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0D0B21
Analogous#21180B, #14210B
Triadic#0B1F21, #210B1F
Split complementary#0B1421, #180B21
Tetradic#0B2118, #0D0B21, #210B14

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AFBA3E
Lighter +30%#8B9431
Lighter +20%#676D25
Lighter +10%#434718
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#232705
Less saturated −25%#1A1B10

Channel breakdown

R31
G33
B11
Red31 (12.2%)
Green33 (12.9%)
Blue11 (4.3%)
Hue65.45°
Saturation (HSL)50%
Lightness8.63%
Dominant channelGreen
Hex per channelR 1F · G 21 · B 0B

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Every value on this page was computed from “1f210b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.