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Recognised as Colour

#EF306B

  • #EF306B
  • Red
  • Dark
  • Nearest: Crimson

#EF306B is a red with RGB values 239, 48, 107 and HSL 341°, 86%, 56%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#EF306B#EF306B
HEX#EF306B
RGBrgb(239, 48, 107)
RGB (0–1)0.9373, 0.1882, 0.4196
RGB percentages93.7%, 18.8%, 42%
HSLhsl(341.5, 85.7%, 56.3%)
HSV / HSBhsv(341.5, 79.9%, 93.7%)
CMYK0%, 79.9%, 55.2%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,675,499
CSS custom property--colour: #EF306B;

Brightness & contrast

Relative luminance0.21526WCAG 2.x, 0 is black and 1 is white
Perceived brightness140.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.31:1
Contrast with white3.96:1WCAG normal text: Fail
Contrast with black5.31:1WCAG normal text: AA
Greyscale equivalent#5D5D5D
Inverted#10CF94

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#66676Cno red cones; affects about 1% of men; ΔE 74.9 from the original
Deuteranopia#978E66no green cones; the most common form, about 1% of men; ΔE 76.5 from the original
Tritanopia#FF004Ano blue cones; rare, and affects men and women equally; ΔE 22.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.96:1WCAG large text: AA
Contrast with black, large text5.31:1WCAG large text: AAA

Named colours

Crimson · ΔE 20.4Deep pink · ΔE 23.3Hot pink · ΔE 29Indian red · ΔE 29.1Medium violet red · ΔE 30.8Pale violetred · ΔE 31.5
Nearest named CSS colourCrimson (#DC143C)ΔE 20.41, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#30EFB4
Analogous#EF30CB, #EF5430
Triadic#6BEF30, #306BEF
Split complementary#30EF54, #30CBEF
Tetradic#CBEF30, #30EFB4, #5430EF

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FEEDF2
Lighter +30%#FABED1
Lighter +20%#F68FAF
Lighter +10%#F35F8D
Darker −10%#DB114F
Darker −20%#AC0D3E
Darker −30%#7C0A2D
Darker −40%#4D061C
More saturated +25%#FF2065
Less saturated −25%#D34C76

Channel breakdown

R239
G48
B107
Red239 (93.7%)
Green48 (18.8%)
Blue107 (42%)
Hue341.47°
Saturation (HSL)85.65%
Lightness56.27%
Dominant channelRed
Hex per channelR EF · G 30 · B 6B

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Every value on this page was computed from “ef306b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.