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Recognised as Colour

#280F03

  • #280F03
  • Orange
  • Dark
  • Nearest: Black

#280F03 is a orange with RGB values 40, 15, 3 and HSL 19°, 86%, 8%. It is a dark colour, so white text on it reaches 18.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#280F03#280F03
HEX#280F03
RGBrgb(40, 15, 3)
RGB (0–1)0.1569, 0.0588, 0.0118
RGB percentages15.7%, 5.9%, 1.2%
HSLhsl(19.5, 86%, 8.4%)
HSV / HSBhsv(19.5, 92.5%, 15.7%)
CMYK0%, 62.5%, 92.5%, 84.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,625,283
CSS custom property--colour: #280F03;

Brightness & contrast

Relative luminance0.00799WCAG 2.x, 0 is black and 1 is white
Perceived brightness24.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.11:1
Contrast with white18.11:1WCAG normal text: AAA
Contrast with black1.16:1WCAG normal text: Fail
Greyscale equivalent#131313
Inverted#D7F0FC

Colour vision & accessibility

Protanopia#161202no red cones; affects about 1% of men; ΔE 12.8 from the original
Deuteranopia#1C1803no green cones; the most common form, about 1% of men; ΔE 13.4 from the original
Tritanopia#2D0A0Cno blue cones; rare, and affects men and women equally; ΔE 7.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.11:1WCAG large text: AAA
Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Nearest named CSS colourBlack (#000000)ΔE 16.89, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#031C28
Analogous#280309, #282203
Triadic#03280F, #0F0328
Split complementary#032822, #030928
Tetradic#092803, #031C28, #220328

Tints, shades & saturation

Lighter +40%#E65611
Lighter +30%#B6440E
Lighter +20%#87330A
Lighter +10%#572107
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2B0E00
Less saturated −25%#231108

Channel breakdown

R40
G15
B3
Red40 (15.7%)
Green15 (5.9%)
Blue3 (1.2%)
Hue19.46°
Saturation (HSL)86.05%
Lightness8.43%
Dominant channelRed
Hex per channelR 28 · G 0F · B 03

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Every value on this page was computed from “280f03” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.