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Recognised as Colour

#EFCB08

  • #EFCB08
  • Yellow
  • Light
  • Nearest: Gold

#EFCB08 is a yellow with RGB values 239, 203, 8 and HSL 51°, 94%, 48%. It is a light colour, so black text on it reaches 13.2:1 contrast (AAA for normal text). The nearest named colour is Gold.

Colour values

#EFCB08#EFCB08
HEX#EFCB08
RGBrgb(239, 203, 8)
RGB (0–1)0.9373, 0.7961, 0.0314
RGB percentages93.7%, 79.6%, 3.1%
HSLhsl(50.6, 93.5%, 48.4%)
HSV / HSBhsv(50.6, 96.7%, 93.7%)
CMYK0%, 15.1%, 96.7%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,715,080
CSS custom property--colour: #EFCB08;

Brightness & contrast

Relative luminance0.6108WCAG 2.x, 0 is black and 1 is white
Perceived brightness203.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.22:1
Contrast with white1.59:1WCAG normal text: Fail
Contrast with black13.22:1WCAG normal text: AAA
Greyscale equivalent#C5C5C5
Inverted#1034F7

Colour vision & accessibility

Protanopia#E2C700no red cones; affects about 1% of men; ΔE 4.5 from the original
Deuteranopia#EBD224no green cones; the most common form, about 1% of men; ΔE 6.1 from the original
Tritanopia#FFBAADno blue cones; rare, and affects men and women equally; ΔE 70.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.59:1WCAG large text: Fail
Contrast with black, large text13.22:1WCAG large text: AAA

Named colours

Nearest named CSS colourGold (#FFD700)ΔE 6.49, clearly different but related
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#082CEF
Analogous#EF5808, #A0EF08
Triadic#08EFCB, #CB08EF
Split complementary#089FEF, #5808EF
Tetradic#08EF57, #082CEF, #EF089F

Tints, shades & saturation

Lighter +40%#FDF4C6
Lighter +30%#FBEB95
Lighter +20%#FAE263
Lighter +10%#F8D932
Darker −10%#BEA106
Darker −20%#8C7705
Darker −30%#5B4D03
Darker −40%#2A2301
More saturated +25%#F7D100
Less saturated −25%#D0B627

Channel breakdown

R239
G203
B8
Red239 (93.7%)
Green203 (79.6%)
Blue8 (3.1%)
Hue50.65°
Saturation (HSL)93.52%
Lightness48.43%
Dominant channelRed
Hex per channelR EF · G CB · B 08

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Every value on this page was computed from “efcb08” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.