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Recognised as Colour

#2D2855

  • #2D2855
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2D2855 is a blue with RGB values 45, 40, 85 and HSL 247°, 36%, 25%. It is a dark colour, so white text on it reaches 13.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2D2855#2D2855
HEX#2D2855
RGBrgb(45, 40, 85)
RGB (0–1)0.1765, 0.1569, 0.3333
RGB percentages17.6%, 15.7%, 33.3%
HSLhsl(246.7, 36%, 24.5%)
HSV / HSBhsv(246.7, 52.9%, 33.3%)
CMYK47.1%, 52.9%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,959,445
CSS custom property--colour: #2D2855;

Brightness & contrast

Relative luminance0.02731WCAG 2.x, 0 is black and 1 is white
Perceived brightness48.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.58:1
Contrast with white13.58:1WCAG normal text: AAA
Contrast with black1.55:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#D2D7AA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#152F57no red cones; affects about 1% of men; ΔE 9.9 from the original
Deuteranopia#142D54no green cones; the most common form, about 1% of men; ΔE 9.9 from the original
Tritanopia#21313Ano blue cones; rare, and affects men and women equally; ΔE 27 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.58:1WCAG large text: AAA
Contrast with black, large text1.55:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 22.2Midnight blue · ΔE 28.2Black · ΔE 36.2Rebecca purple · ΔE 37Dark slate grey · ΔE 37.7Steel blue · ΔE 39.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 22.15, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#505528
Analogous#283955, #442855
Triadic#552D28, #28552D
Split complementary#554428, #395528
Tetradic#552839, #505528, #285544

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8B84C5
Lighter +30%#6B61B5
Lighter +20%#52499A
Lighter +10%#3F3878
Darker −10%#1B1832
Darker −20%#080710
Darker −30%#000000
Darker −40%#000000
More saturated +25%#211865
Less saturated −25%#393845

Channel breakdown

R45
G40
B85
Red45 (17.6%)
Green40 (15.7%)
Blue85 (33.3%)
Hue246.67°
Saturation (HSL)36%
Lightness24.51%
Dominant channelBlue
Hex per channelR 2D · G 28 · B 55

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Every value on this page was computed from “2d2855” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.