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Recognised as Colour

#153E5D

  • #153E5D
  • Blue
  • Dark
  • Nearest: Dark slate grey

#153E5D is a blue with RGB values 21, 62, 93 and HSL 206°, 63%, 22%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#153E5D#153E5D
HEX#153E5D
RGBrgb(21, 62, 93)
RGB (0–1)0.0824, 0.2431, 0.3647
RGB percentages8.2%, 24.3%, 36.5%
HSLhsl(205.8, 63.2%, 22.4%)
HSV / HSBhsv(205.8, 77.4%, 36.5%)
CMYK77.4%, 33.3%, 0%, 63.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,392,221
CSS custom property--colour: #153E5D;

Brightness & contrast

Relative luminance0.04395WCAG 2.x, 0 is black and 1 is white
Perceived brightness58.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.18:1
Contrast with white11.18:1WCAG normal text: AAA
Contrast with black1.88:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#EAC1A2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#303F5Eno red cones; affects about 1% of men; ΔE 6.5 from the original
Deuteranopia#26385Cno green cones; the most common form, about 1% of men; ΔE 7.4 from the original
Tritanopia#004649no blue cones; rare, and affects men and women equally; ΔE 21.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.18:1WCAG large text: AAA
Contrast with black, large text1.88:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 21.9Steel blue · ΔE 29.2Dim grey · ΔE 29.9Slate grey · ΔE 30.4Light slate grey · ΔE 33Black · ΔE 33.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 21.92, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5D3415
Analogous#155D58, #151A5D
Triadic#5D153E, #3E5D15
Split complementary#5D151A, #5D5815
Tetradic#58155D, #5D3415, #1A5D15

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#62A7DC
Lighter +30%#3990D2
Lighter +20%#2875B0
Lighter +10%#1E5A87
Darker −10%#0C2233
Darker −20%#02070A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#07406B
Less saturated −25%#233C4F

Channel breakdown

R21
G62
B93
Red21 (8.2%)
Green62 (24.3%)
Blue93 (36.5%)
Hue205.83°
Saturation (HSL)63.16%
Lightness22.35%
Dominant channelBlue
Hex per channelR 15 · G 3E · B 5D

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Every value on this page was computed from “153e5d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.