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Recognised as Colour

#28211A

  • #28211A
  • Orange
  • Dark
  • Nearest: Black

#28211A is a orange with RGB values 40, 33, 26 and HSL 30°, 21%, 13%. It is a dark colour, so white text on it reaches 15.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#28211A#28211A
HEX#28211A
RGBrgb(40, 33, 26)
RGB (0–1)0.1569, 0.1294, 0.102
RGB percentages15.7%, 12.9%, 10.2%
HSLhsl(30, 21.2%, 12.9%)
HSV / HSBhsv(30, 35%, 15.7%)
CMYK0%, 17.5%, 35%, 84.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,629,914
CSS custom property--colour: #28211A;

Brightness & contrast

Relative luminance0.01613WCAG 2.x, 0 is black and 1 is white
Perceived brightness34.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.88:1
Contrast with white15.88:1WCAG normal text: AAA
Contrast with black1.32:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#D7DEE5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#23211Ano red cones; affects about 1% of men; ΔE 2.8 from the original
Deuteranopia#25231Ano green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#2A1F1Fno blue cones; rare, and affects men and women equally; ΔE 5.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.88:1WCAG large text: AAA
Contrast with black, large text1.32:1WCAG large text: Fail

Named colours

Black · ΔE 14.7Dark slate grey · ΔE 24.6Dim grey · ΔE 31.7Gray · ΔE 40.8Slate grey · ΔE 43Dark olivegreen · ΔE 43.3
Nearest named CSS colourBlack (#000000)ΔE 14.72, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1A2128
Analogous#281A1A, #28281A
Triadic#1A2821, #211A28
Split complementary#1A2828, #1A1A28
Tetradic#1A281A, #1A2128, #281A28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A0876E
Lighter +30%#856D56
Lighter +20%#665442
Lighter +10%#473A2E
Darker −10%#090706
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#302112
Less saturated −25%#212121

Channel breakdown

R40
G33
B26
Red40 (15.7%)
Green33 (12.9%)
Blue26 (10.2%)
Hue30°
Saturation (HSL)21.21%
Lightness12.94%
Dominant channelRed
Hex per channelR 28 · G 21 · B 1A

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Every value on this page was computed from “28211a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.