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Colour

#2D589D

  • #2D589D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2D589D is a blue with RGB values 45, 88, 157 and HSL 217°, 55%, 40%. It is a dark colour, so white text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2D589D#2D589D
HEX#2D589D
RGBrgb(45, 88, 157)
RGB (0–1)0.1765, 0.3451, 0.6157
RGB percentages17.6%, 34.5%, 61.6%
HSLhsl(217, 55.4%, 39.6%)
HSV / HSBhsv(217, 71.3%, 61.6%)
CMYK71.3%, 43.9%, 0%, 38.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,971,805
CSS custom property--colour: #2D589D;

Brightness & contrast

Relative luminance0.09972WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.01:1
Contrast with white7.01:1WCAG normal text: AAA
Contrast with black2.99:1WCAG normal text: Fail
Greyscale equivalent#545454
Inverted#D2A762

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#375FA0no red cones; affects about 1% of men; ΔE 4 from the original
Deuteranopia#23549Cno green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#006873no blue cones; rare, and affects men and women equally; ΔE 41.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.01:1WCAG large text: AAA
Contrast with black, large text2.99:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18.2Steel blue · ΔE 22.1Cornflower blue · ΔE 25.2Dodgerblue · ΔE 30.4Royal blue · ΔE 30.6Slate blue · ΔE 32
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.2, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9D722D
Analogous#2D909D, #3A2D9D
Triadic#9D2D58, #589D2D
Split complementary#9D3A2D, #909D2D
Tetradic#9D2D90, #9D722D, #2D9D3A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AEC4E8
Lighter +30%#87A8DC
Lighter +20%#5F8BD1
Lighter +10%#386EC5
Darker −10%#224275
Darker −20%#162C4E
Darker −30%#0B1526
Darker −40%#000000
More saturated +25%#1452B6
Less saturated −25%#465E84

Channel breakdown

R45
G88
B157
Red45 (17.6%)
Green88 (34.5%)
Blue157 (61.6%)
Hue216.96°
Saturation (HSL)55.45%
Lightness39.61%
Dominant channelBlue
Hex per channelR 2D · G 58 · B 9D

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Every value on this page was computed from “2d589d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.