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Recognised as Colour

#F37D3A

  • #F37D3A
  • Orange
  • Dark
  • Nearest: Coral

#F37D3A is a orange with RGB values 243, 125, 58 and HSL 22°, 89%, 59%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Coral.

Colour values

#F37D3A#F37D3A
HEX#F37D3A
RGBrgb(243, 125, 58)
RGB (0–1)0.9529, 0.4902, 0.2275
RGB percentages95.3%, 49%, 22.7%
HSLhsl(21.7, 88.5%, 59%)
HSV / HSBhsv(21.7, 76.1%, 95.3%)
CMYK0%, 48.6%, 76.1%, 4.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,957,306
CSS custom property--colour: #F37D3A;

Brightness & contrast

Relative luminance0.34027WCAG 2.x, 0 is black and 1 is white
Perceived brightness165 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.81:1
Contrast with white2.69:1WCAG normal text: Fail
Contrast with black7.81:1WCAG normal text: AAA
Greyscale equivalent#919191
Inverted#0C82C5

Colour vision & accessibility

Protanopia#9E8D31no red cones; affects about 1% of men; ΔE 46.1 from the original
Deuteranopia#BBA838no green cones; the most common form, about 1% of men; ΔE 46.8 from the original
Tritanopia#FF646Fno blue cones; rare, and affects men and women equally; ΔE 35.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.69:1WCAG large text: Fail
Contrast with black, large text7.81:1WCAG large text: AAA

Named colours

Nearest named CSS colourCoral (#FF7F50)ΔE 9.23, clearly different but related
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#3AB0F3
Analogous#F33A53, #F3DA3A
Triadic#3AF37D, #7D3AF3
Split complementary#3AF3DA, #3A53F3
Tetradic#53F33A, #3AB0F3, #DA3AF3

Tints, shades & saturation

Lighter +40%#FFFCFA
Lighter +30%#FCDCCA
Lighter +20%#F9BC9A
Lighter +10%#F69D6A
Darker −10%#EC5E0E
Darker −20%#BC4B0B
Darker −30%#8C3808
Darker −40%#5B2506
More saturated +25%#FF7A2E
Less saturated −25%#D98454

Channel breakdown

R243
G125
B58
Red243 (95.3%)
Green125 (49%)
Blue58 (22.7%)
Hue21.73°
Saturation (HSL)88.52%
Lightness59.02%
Dominant channelRed
Hex per channelR F3 · G 7D · B 3A

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Every value on this page was computed from “f37d3a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.