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Colour

#2A2351

  • #2A2351
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2A2351 is a blue with RGB values 42, 35, 81 and HSL 249°, 40%, 23%. It is a dark colour, so white text on it reaches 14.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2A2351#2A2351
HEX#2A2351
RGBrgb(42, 35, 81)
RGB (0–1)0.1647, 0.1373, 0.3176
RGB percentages16.5%, 13.7%, 31.8%
HSLhsl(249.1, 39.7%, 22.7%)
HSV / HSBhsv(249.1, 56.8%, 31.8%)
CMYK48.1%, 56.8%, 0%, 68.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,761,553
CSS custom property--colour: #2A2351;

Brightness & contrast

Relative luminance0.02288WCAG 2.x, 0 is black and 1 is white
Perceived brightness44.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.41:1
Contrast with white14.41:1WCAG normal text: AAA
Contrast with black1.46:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#D5DCAE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0E2B53no red cones; affects about 1% of men; ΔE 11.2 from the original
Deuteranopia#0E2850no green cones; the most common form, about 1% of men; ΔE 10.2 from the original
Tritanopia#1E2D36no blue cones; rare, and affects men and women equally; ΔE 28 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.41:1WCAG large text: AAA
Contrast with black, large text1.46:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 22.4Midnight blue · ΔE 26.9Black · ΔE 36.2Rebecca purple · ΔE 36.5Dark slate grey · ΔE 39.6Steel blue · ΔE 41.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 22.37, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4A5123
Analogous#233351, #412351
Triadic#512A23, #23512A
Split complementary#514123, #335123
Tetradic#512333, #4A5123, #235141

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#867AC6
Lighter +30%#6557B6
Lighter +20%#4F4298
Lighter +10%#3C3275
Darker −10%#18142D
Darker −20%#05040A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#20155F
Less saturated −25%#343242

Channel breakdown

R42
G35
B81
Red42 (16.5%)
Green35 (13.7%)
Blue81 (31.8%)
Hue249.13°
Saturation (HSL)39.66%
Lightness22.75%
Dominant channelBlue
Hex per channelR 2A · G 23 · B 51

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Every value on this page was computed from “2a2351” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.