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Recognised as Colour

#FFA304

  • #FFA304
  • Orange
  • Dark
  • Nearest: Orange

#FFA304 is a orange with RGB values 255, 163, 4 and HSL 38°, 100%, 51%. It is a dark colour, so black text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Orange.

Colour values

#FFA304#FFA304
HEX#FFA304
RGBrgb(255, 163, 4)
RGB (0–1)1, 0.6392, 0.0157
RGB percentages100%, 63.9%, 1.6%
HSLhsl(38, 100%, 50.8%)
HSV / HSBhsv(38, 98.4%, 100%)
CMYK0%, 36.1%, 98.4%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,753,412
CSS custom property--colour: #FFA304;

Brightness & contrast

Relative luminance0.47463WCAG 2.x, 0 is black and 1 is white
Perceived brightness187.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.49:1
Contrast with white2:1WCAG normal text: Fail
Contrast with black10.49:1WCAG normal text: AAA
Greyscale equivalent#ABABAB
Inverted#005CFB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C2AA00no red cones; affects about 1% of men; ΔE 31.2 from the original
Deuteranopia#D7C010no green cones; the most common form, about 1% of men; ΔE 32.4 from the original
Tritanopia#FF8C8Bno blue cones; rare, and affects men and women equally; ΔE 61 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2:1WCAG large text: Fail
Contrast with black, large text10.49:1WCAG large text: AAA

Named colours

Orange · ΔE 1.4Dark orange · ΔE 13.1Goldenrod · ΔE 19.3Dark goldenrod · ΔE 26.5Chocolate · ΔE 30.8Gold · ΔE 31
Nearest named CSS colourOrange (#FFA500)ΔE 1.39, below the just-noticeable difference
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0460FF
Analogous#FF2504, #DEFF04
Triadic#04FFA3, #A304FF
Split complementary#04DEFF, #2504FF
Tetradic#04FF25, #0460FF, #FF04DE

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFEED0
Lighter +30%#FFDB9D
Lighter +20%#FFC86A
Lighter +10%#FFB637
Darker −10%#D08400
Darker −20%#9D6300
Darker −30%#6A4300
Darker −40%#372300
More saturated +25%#FFA304
Less saturated −25%#E09B23

Channel breakdown

R255
G163
B4
Red255 (100%)
Green163 (63.9%)
Blue4 (1.6%)
Hue38.01°
Saturation (HSL)100%
Lightness50.78%
Dominant channelRed
Hex per channelR FF · G A3 · B 04

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Every value on this page was computed from “ffa304” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.