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Recognised as Colour

#2A5291

  • #2A5291
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2A5291 is a blue with RGB values 42, 82, 145 and HSL 217°, 55%, 37%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2A5291#2A5291
HEX#2A5291
RGBrgb(42, 82, 145)
RGB (0–1)0.1647, 0.3216, 0.5686
RGB percentages16.5%, 32.2%, 56.9%
HSLhsl(216.7, 55.1%, 36.7%)
HSV / HSBhsv(216.7, 71%, 56.9%)
CMYK71%, 43.4%, 0%, 43.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,773,649
CSS custom property--colour: #2A5291;

Brightness & contrast

Relative luminance0.08571WCAG 2.x, 0 is black and 1 is white
Perceived brightness82.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.74:1
Contrast with white7.74:1WCAG normal text: AAA
Contrast with black2.71:1WCAG normal text: Fail
Greyscale equivalent#4E4E4E
Inverted#D5AD6E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#345893no red cones; affects about 1% of men; ΔE 3.8 from the original
Deuteranopia#234E90no green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#00616Ano blue cones; rare, and affects men and women equally; ΔE 39.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.74:1WCAG large text: AAA
Contrast with black, large text2.71:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18.7Steel blue · ΔE 22.2Cornflower blue · ΔE 28.7Midnight blue · ΔE 32.3Royal blue · ΔE 34.4Dodgerblue · ΔE 34.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.69, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#91692A
Analogous#2A8591, #362A91
Triadic#912A52, #52912A
Split complementary#91352A, #86912A
Tetradic#912A85, #91692A, #2A9135

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A3BCE4
Lighter +30%#7BA0D9
Lighter +20%#5483CD
Lighter +10%#3568B9
Darker −10%#1F3C69
Darker −20%#132542
Darker −30%#080F1A
Darker −40%#000000
More saturated +25%#134DA8
Less saturated −25%#41577A

Channel breakdown

R42
G82
B145
Red42 (16.5%)
Green82 (32.2%)
Blue145 (56.9%)
Hue216.7°
Saturation (HSL)55.08%
Lightness36.67%
Dominant channelBlue
Hex per channelR 2A · G 52 · B 91

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Every value on this page was computed from “2a5291” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.