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Recognised as Colour

#CD3B00

  • #CD3B00
  • Orange
  • Dark
  • Nearest: Orange red

#CD3B00 is a orange with RGB values 205, 59, 0 and HSL 17°, 100%, 40%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#CD3B00#CD3B00
HEX#CD3B00
RGBrgb(205, 59, 0)
RGB (0–1)0.8039, 0.2314, 0
RGB percentages80.4%, 23.1%, 0%
HSLhsl(17.3, 100%, 40.2%)
HSV / HSBhsv(17.3, 100%, 80.4%)
CMYK0%, 71.2%, 100%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,449,984
CSS custom property--colour: #CD3B00;

Brightness & contrast

Relative luminance0.16107WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.97:1
Contrast with white4.97:1WCAG normal text: AA
Contrast with black4.22:1WCAG normal text: Fail
Greyscale equivalent#565656
Inverted#32C4FF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#685B00no red cones; affects about 1% of men; ΔE 61.2 from the original
Deuteranopia#8C7C00no green cones; the most common form, about 1% of men; ΔE 60.9 from the original
Tritanopia#E20033no blue cones; rare, and affects men and women equally; ΔE 26.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.97:1WCAG large text: AAA
Contrast with black, large text4.22:1WCAG large text: AA

Named colours

Orange red · ΔE 19Tomato · ΔE 19.7Chocolate · ΔE 20.6Firebrick · ΔE 22.6Coral · ΔE 25.3Dark red · ΔE 26.3
Nearest named CSS colourOrange red (#FF4500)ΔE 19.01, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0092CD
Analogous#CD002C, #CDA100
Triadic#00CD3B, #3B00CD
Split complementary#00CDA1, #002CCD
Tetradic#2CCD00, #0092CD, #A100CD

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFB79A
Lighter +30%#FF9367
Lighter +20%#FF6E34
Lighter +10%#FF4A01
Darker −10%#9A2C00
Darker −20%#671E00
Darker −30%#340F00
Darker −40%#010000
More saturated +25%#CD3B00
Less saturated −25%#B3461A

Channel breakdown

R205
G59
B0
Red205 (80.4%)
Green59 (23.1%)
Blue0 (0%)
Hue17.27°
Saturation (HSL)100%
Lightness40.2%
Dominant channelRed
Hex per channelR CD · G 3B · B 00

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Every value on this page was computed from “cd3b00” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.