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Recognised as Colour

#EF9C03

  • #EF9C03
  • Orange
  • Dark
  • Nearest: Orange

#EF9C03 is a orange with RGB values 239, 156, 3 and HSL 39°, 98%, 47%. It is a dark colour, so black text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Orange.

Colour values

#EF9C03#EF9C03
HEX#EF9C03
RGBrgb(239, 156, 3)
RGB (0–1)0.9373, 0.6118, 0.0118
RGB percentages93.7%, 61.2%, 1.2%
HSLhsl(38.9, 97.5%, 47.5%)
HSV / HSBhsv(38.9, 98.7%, 93.7%)
CMYK0%, 34.7%, 98.7%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,703,043
CSS custom property--colour: #EF9C03;

Brightness & contrast

Relative luminance0.42134WCAG 2.x, 0 is black and 1 is white
Perceived brightness177.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.43:1
Contrast with white2.23:1WCAG normal text: Fail
Contrast with black9.43:1WCAG normal text: AAA
Greyscale equivalent#A3A3A3
Inverted#1063FC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B8A200no red cones; affects about 1% of men; ΔE 28.3 from the original
Deuteranopia#CCB60Fno green cones; the most common form, about 1% of men; ΔE 29 from the original
Tritanopia#FF8785no blue cones; rare, and affects men and women equally; ΔE 58 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.23:1WCAG large text: Fail
Contrast with black, large text9.43:1WCAG large text: AAA

Named colours

Orange · ΔE 5.9Goldenrod · ΔE 14.8Dark orange · ΔE 15Dark goldenrod · ΔE 20.9Chocolate · ΔE 28.1Sandy brown · ΔE 28.4
Nearest named CSS colourOrange (#FFA500)ΔE 5.91, clearly different but related
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0356EF
Analogous#EF2603, #CCEF03
Triadic#03EF9C, #9C03EF
Split complementary#03CCEF, #2603EF
Tetradic#03EF26, #0356EF, #EF03CC

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FEE8C0
Lighter +30%#FED68D
Lighter +20%#FDC45B
Lighter +10%#FCB229
Darker −10%#BD7B02
Darker −20%#8A5A02
Darker −30%#583901
Darker −40%#261800
More saturated +25%#F29D00
Less saturated −25%#D19321

Channel breakdown

R239
G156
B3
Red239 (93.7%)
Green156 (61.2%)
Blue3 (1.2%)
Hue38.9°
Saturation (HSL)97.52%
Lightness47.45%
Dominant channelRed
Hex per channelR EF · G 9C · B 03

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Every value on this page was computed from “ef9c03” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.