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Colour

#28152F

  • #28152F
  • Violet
  • Dark
  • Nearest: Black

#28152F is a violet with RGB values 40, 21, 47 and HSL 284°, 38%, 13%. It is a dark colour, so white text on it reaches 17:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#28152F#28152F
HEX#28152F
RGBrgb(40, 21, 47)
RGB (0–1)0.1569, 0.0824, 0.1843
RGB percentages15.7%, 8.2%, 18.4%
HSLhsl(283.8, 38.2%, 13.3%)
HSV / HSBhsv(283.8, 55.3%, 18.4%)
CMYK14.9%, 55.3%, 0%, 81.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,626,863
CSS custom property--colour: #28152F;

Brightness & contrast

Relative luminance0.01193WCAG 2.x, 0 is black and 1 is white
Perceived brightness31.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.96:1
Contrast with white16.96:1WCAG normal text: AAA
Contrast with black1.24:1WCAG normal text: Fail
Greyscale equivalent#1B1B1B
Inverted#D7EAD0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#101B30no red cones; affects about 1% of men; ΔE 12.6 from the original
Deuteranopia#161D2Eno green cones; the most common form, about 1% of men; ΔE 12.9 from the original
Tritanopia#28191Fno blue cones; rare, and affects men and women equally; ΔE 14.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.96:1WCAG large text: AAA
Contrast with black, large text1.24:1WCAG large text: Fail

Named colours

Black · ΔE 23Dark slate grey · ΔE 35.5Dark slateblue · ΔE 36.6Dim grey · ΔE 39.6Midnight blue · ΔE 39.9Slate grey · ΔE 45.9
Nearest named CSS colourBlack (#000000)ΔE 23.04, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1C2F15
Analogous#1B152F, #2F1529
Triadic#2F2815, #152F28
Split complementary#292F15, #152F1B
Tetradic#2F1B15, #1C2F15, #15292F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9D5AB6
Lighter +30%#824499
Lighter +20%#643476
Lighter +10%#462552
Darker −10%#0A050C
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2C0D38
Less saturated −25%#241D27

Channel breakdown

R40
G21
B47
Red40 (15.7%)
Green21 (8.2%)
Blue47 (18.4%)
Hue283.85°
Saturation (HSL)38.24%
Lightness13.33%
Dominant channelBlue
Hex per channelR 28 · G 15 · B 2F

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Every value on this page was computed from “28152f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.