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Recognised as Colour

#ACA425

  • #ACA425
  • Yellow
  • Dark
  • Nearest: Olive

#ACA425 is a yellow with RGB values 172, 164, 37 and HSL 56°, 65%, 41%. It is a dark colour, so black text on it reaches 8.1:1 contrast (AAA for normal text). The nearest named colour is Olive.

Colour values

#ACA425#ACA425
HEX#ACA425
RGBrgb(172, 164, 37)
RGB (0–1)0.6745, 0.6431, 0.1451
RGB percentages67.5%, 64.3%, 14.5%
HSLhsl(56.4, 64.6%, 41%)
HSV / HSBhsv(56.4, 78.5%, 67.5%)
CMYK0%, 4.7%, 78.5%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,314,213
CSS custom property--colour: #ACA425;

Brightness & contrast

Relative luminance0.35455WCAG 2.x, 0 is black and 1 is white
Perceived brightness157.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.09:1
Contrast with white2.6:1WCAG normal text: Fail
Contrast with black8.09:1WCAG normal text: AAA
Greyscale equivalent#9D9D9D
Inverted#535BDA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B39E00no red cones; affects about 1% of men; ΔE 8.8 from the original
Deuteranopia#B6A330no green cones; the most common form, about 1% of men; ΔE 6.1 from the original
Tritanopia#B9988Cno blue cones; rare, and affects men and women equally; ΔE 55 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.6:1WCAG large text: Fail
Contrast with black, large text8.09:1WCAG large text: AAA

Named colours

Olive · ΔE 15.1Goldenrod · ΔE 21.5Dark goldenrod · ΔE 22.1Dark khaki · ΔE 23.5Olivedrab · ΔE 23.7Yellow green · ΔE 29.3
Nearest named CSS colourOlive (#808000)ΔE 15.14, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#252DAC
Analogous#AC6125, #71AC25
Triadic#25ACA4, #A425AC
Split complementary#2570AC, #6125AC
Tetradic#25AC61, #252DAC, #AC2571

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EEEAAF
Lighter +30%#E5DF85
Lighter +20%#DCD45B
Lighter +10%#D3C931
Darker −10%#827C1C
Darker −20%#585413
Darker −30%#2E2C0A
Darker −40%#040401
More saturated +25%#C6BB0B
Less saturated −25%#928D3F

Channel breakdown

R172
G164
B37
Red172 (67.5%)
Green164 (64.3%)
Blue37 (14.5%)
Hue56.44°
Saturation (HSL)64.59%
Lightness40.98%
Dominant channelRed
Hex per channelR AC · G A4 · B 25

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Every value on this page was computed from “aca425” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.