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Recognised as Colour

#280C10

  • #280C10
  • Red
  • Dark
  • Nearest: Black

#280C10 is a red with RGB values 40, 12, 16 and HSL 351°, 54%, 10%. It is a dark colour, so white text on it reaches 18.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#280C10#280C10
HEX#280C10
RGBrgb(40, 12, 16)
RGB (0–1)0.1569, 0.0471, 0.0627
RGB percentages15.7%, 4.7%, 6.3%
HSLhsl(351.4, 53.8%, 10.2%)
HSV / HSBhsv(351.4, 70%, 15.7%)
CMYK0%, 70%, 60%, 84.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,624,528
CSS custom property--colour: #280C10;

Brightness & contrast

Relative luminance0.00751WCAG 2.x, 0 is black and 1 is white
Perceived brightness24.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.26:1
Contrast with white18.26:1WCAG normal text: AAA
Contrast with black1.15:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#D7F3EF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#121210no red cones; affects about 1% of men; ΔE 15.5 from the original
Deuteranopia#19170Fno green cones; the most common form, about 1% of men; ΔE 15.7 from the original
Tritanopia#2C080Eno blue cones; rare, and affects men and women equally; ΔE 4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.26:1WCAG large text: AAA
Contrast with black, large text1.15:1WCAG large text: Fail

Named colours

Black · ΔE 16.7Dark slate grey · ΔE 36.8Dim grey · ΔE 40.6Gray · ΔE 49.2Saddle brown · ΔE 49.8Slate grey · ΔE 51.1
Nearest named CSS colourBlack (#000000)ΔE 16.71, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0C2824
Analogous#280C1E, #28160C
Triadic#10280C, #0C1028
Split complementary#0C2816, #0C1E28
Tetradic#1E280C, #0C2824, #160C28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C43C4F
Lighter +30%#9E2F3F
Lighter +20%#76242F
Lighter +10%#4F1820
Darker −10%#010000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2F060B
Less saturated −25%#221215

Channel breakdown

R40
G12
B16
Red40 (15.7%)
Green12 (4.7%)
Blue16 (6.3%)
Hue351.43°
Saturation (HSL)53.85%
Lightness10.2%
Dominant channelRed
Hex per channelR 28 · G 0C · B 10

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Every value on this page was computed from “280c10” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.