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Recognised as Colour

#FD5703

  • #FD5703
  • Orange
  • Dark
  • Nearest: Orange red

#FD5703 is a orange with RGB values 253, 87, 3 and HSL 20°, 98%, 50%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#FD5703#FD5703
HEX#FD5703
RGBrgb(253, 87, 3)
RGB (0–1)0.9922, 0.3412, 0.0118
RGB percentages99.2%, 34.1%, 1.2%
HSLhsl(20.2, 98.4%, 50.2%)
HSV / HSBhsv(20.2, 98.8%, 99.2%)
CMYK0%, 65.6%, 98.8%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,602,883
CSS custom property--colour: #FD5703;

Brightness & contrast

Relative luminance0.27706WCAG 2.x, 0 is black and 1 is white
Perceived brightness153.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.54:1
Contrast with white3.21:1WCAG normal text: Fail
Contrast with black6.54:1WCAG normal text: AA
Greyscale equivalent#747474
Inverted#02A8FC

Colour vision & accessibility

Protanopia#897800no red cones; affects about 1% of men; ΔE 66.9 from the original
Deuteranopia#B29D00no green cones; the most common form, about 1% of men; ΔE 66.4 from the original
Tritanopia#FF1C4Bno blue cones; rare, and affects men and women equally; ΔE 38.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.21:1WCAG large text: AA
Contrast with black, large text6.54:1WCAG large text: AAA

Named colours

Nearest named CSS colourOrange red (#FF4500)ΔE 7.45, clearly different but related
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#03A9FD
Analogous#FD032C, #FDD403
Triadic#03FD57, #5703FD
Split complementary#03FDD4, #032CFD
Tetradic#2CFD03, #03A9FD, #D403FD

Tints, shades & saturation

Lighter +40%#FFDECD
Lighter +30%#FEBC9B
Lighter +20%#FE9A68
Lighter +10%#FD7936
Darker −10%#CB4502
Darker −20%#993401
Darker −30%#662301
Darker −40%#341200
More saturated +25%#FF5601
Less saturated −25%#DD6123

Channel breakdown

R253
G87
B3
Red253 (99.2%)
Green87 (34.1%)
Blue3 (1.2%)
Hue20.16°
Saturation (HSL)98.43%
Lightness50.2%
Dominant channelRed
Hex per channelR FD · G 57 · B 03

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Every value on this page was computed from “fd5703” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.