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Colour

#665A15

  • #665A15
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#665A15 is a yellow with RGB values 102, 90, 21 and HSL 51°, 66%, 24%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#665A15#665A15
HEX#665A15
RGBrgb(102, 90, 21)
RGB (0–1)0.4, 0.3529, 0.0824
RGB percentages40%, 35.3%, 8.2%
HSLhsl(51.1, 65.9%, 24.1%)
HSV / HSBhsv(51.1, 79.4%, 40%)
CMYK0%, 11.8%, 79.4%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,707,733
CSS custom property--colour: #665A15;

Brightness & contrast

Relative luminance0.10191WCAG 2.x, 0 is black and 1 is white
Perceived brightness89 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.91:1
Contrast with white6.91:1WCAG normal text: AA
Contrast with black3.04:1WCAG normal text: Fail
Greyscale equivalent#585858
Inverted#99A5EA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#645708no red cones; affects about 1% of men; ΔE 3.5 from the original
Deuteranopia#675C1Ano green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#6F534Dno blue cones; rare, and affects men and women equally; ΔE 34.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.91:1WCAG large text: AAA
Contrast with black, large text3.04:1WCAG large text: AA

Named colours

Dark olivegreen · ΔE 18.1Olive · ΔE 24.3Saddle brown · ΔE 29.9Olivedrab · ΔE 31.6Sienna · ΔE 33.4Dark goldenrod · ΔE 34.3
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 18.06, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#152166
Analogous#663115, #4A6615
Triadic#15665A, #5A1566
Split complementary#154A66, #311566
Tetradic#156631, #152166, #66154A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E0CE67
Lighter +30%#D7C03D
Lighter +20%#BBA526
Lighter +10%#907F1E
Darker −10%#3C350C
Darker −20%#110F04
Darker −30%#000000
Darker −40%#000000
More saturated +25%#756506
Less saturated −25%#574F24

Channel breakdown

R102
G90
B21
Red102 (40%)
Green90 (35.3%)
Blue21 (8.2%)
Hue51.11°
Saturation (HSL)65.85%
Lightness24.12%
Dominant channelRed
Hex per channelR 66 · G 5A · B 15

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Every value on this page was computed from “665a15” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.