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Colour

#FF9A31

  • #FF9A31
  • Orange
  • Dark
  • Nearest: Dark orange

#FF9A31 is a orange with RGB values 255, 154, 49 and HSL 31°, 100%, 60%. It is a dark colour, so black text on it reaches 9.9:1 contrast (AAA for normal text). The nearest named colour is Dark orange.

Colour values

#FF9A31#FF9A31
HEX#FF9A31
RGBrgb(255, 154, 49)
RGB (0–1)1, 0.6039, 0.1922
RGB percentages100%, 60.4%, 19.2%
HSLhsl(30.6, 100%, 59.6%)
HSV / HSBhsv(30.6, 80.8%, 100%)
CMYK0%, 39.6%, 80.8%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,751,153
CSS custom property--colour: #FF9A31;

Brightness & contrast

Relative luminance0.44593WCAG 2.x, 0 is black and 1 is white
Perceived brightness183.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.92:1
Contrast with white2.12:1WCAG normal text: Fail
Contrast with black9.92:1WCAG normal text: AAA
Greyscale equivalent#A8A8A8
Inverted#0065CE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B9A41Eno red cones; affects about 1% of men; ΔE 36.5 from the original
Deuteranopia#D1BB32no green cones; the most common form, about 1% of men; ΔE 37 from the original
Tritanopia#FF8386no blue cones; rare, and affects men and women equally; ΔE 49.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.12:1WCAG large text: Fail
Contrast with black, large text9.92:1WCAG large text: AAA

Named colours

Dark orange · ΔE 11.3Orange · ΔE 14.1Chocolate · ΔE 20.5Sandy brown · ΔE 21.2Goldenrod · ΔE 22.1Peru · ΔE 23.5
Nearest named CSS colourDark orange (#FF8C00)ΔE 11.34, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3196FF
Analogous#FF3331, #FDFF31
Triadic#31FF9A, #9A31FF
Split complementary#31FDFF, #3331FF
Tetradic#31FF33, #3196FF, #FF31FD

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFEFD
Lighter +30%#FFE5CA
Lighter +20%#FFCC97
Lighter +10%#FFB364
Darker −10%#FD8100
Darker −20%#CA6700
Darker −30%#974D00
Darker −40%#643300
More saturated +25%#FF9A31
Less saturated −25%#E5994B

Channel breakdown

R255
G154
B49
Red255 (100%)
Green154 (60.4%)
Blue49 (19.2%)
Hue30.58°
Saturation (HSL)100%
Lightness59.61%
Dominant channelRed
Hex per channelR FF · G 9A · B 31

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Every value on this page was computed from “ff9a31” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.