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Recognised as Colour

#57283F

  • #57283F
  • Red
  • Dark
  • Nearest: Dim grey

#57283F is a red with RGB values 87, 40, 63 and HSL 331°, 37%, 25%. It is a dark colour, so white text on it reaches 11.8:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#57283F#57283F
HEX#57283F
RGBrgb(87, 40, 63)
RGB (0–1)0.3412, 0.1569, 0.2471
RGB percentages34.1%, 15.7%, 24.7%
HSLhsl(330.6, 37%, 24.9%)
HSV / HSBhsv(330.6, 54%, 34.1%)
CMYK0%, 54%, 27.6%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,711,935
CSS custom property--colour: #57283F;

Brightness & contrast

Relative luminance0.03903WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.79:1
Contrast with white11.79:1WCAG normal text: AAA
Contrast with black1.78:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#A8D7C0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2D3340no red cones; affects about 1% of men; ΔE 24.3 from the original
Deuteranopia#3A3B3Eno green cones; the most common form, about 1% of men; ΔE 24.7 from the original
Tritanopia#5D2631no blue cones; rare, and affects men and women equally; ΔE 9.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.79:1WCAG large text: AAA
Contrast with black, large text1.78:1WCAG large text: Fail

Named colours

Dim grey · ΔE 32.9Black · ΔE 34.4Dark slate grey · ΔE 37.4Dark slateblue · ΔE 38.3Gray · ΔE 39.4Slate grey · ΔE 40.4
Nearest named CSS colourDim grey (#696969)ΔE 32.85, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#285740
Analogous#572856, #572928
Triadic#3F5728, #283F57
Split complementary#285729, #285657
Tetradic#565728, #285740, #292857

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C784A5
Lighter +30%#B7618B
Lighter +20%#9D4872
Lighter +10%#7A3858
Darker −10%#341826
Darker −20%#11080C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#67183F
Less saturated −25%#47383F

Channel breakdown

R87
G40
B63
Red87 (34.1%)
Green40 (15.7%)
Blue63 (24.7%)
Hue330.64°
Saturation (HSL)37.01%
Lightness24.9%
Dominant channelRed
Hex per channelR 57 · G 28 · B 3F

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Every value on this page was computed from “57283f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.