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Recognised as Colour

#154E9F

  • #154E9F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#154E9F is a blue with RGB values 21, 78, 159 and HSL 215°, 77%, 35%. It is a dark colour, so white text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#154E9F#154E9F
HEX#154E9F
RGBrgb(21, 78, 159)
RGB (0–1)0.0824, 0.3059, 0.6235
RGB percentages8.2%, 30.6%, 62.4%
HSLhsl(215.2, 76.7%, 35.3%)
HSV / HSBhsv(215.2, 86.8%, 62.4%)
CMYK86.8%, 50.9%, 0%, 37.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,396,383
CSS custom property--colour: #154E9F;

Brightness & contrast

Relative luminance0.08111WCAG 2.x, 0 is black and 1 is white
Perceived brightness81.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.01:1
Contrast with white8.01:1WCAG normal text: AAA
Contrast with black2.62:1WCAG normal text: Fail
Greyscale equivalent#484848
Inverted#EAB160

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1A57A2no red cones; affects about 1% of men; ΔE 6.1 from the original
Deuteranopia#004B9Dno green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#00626Fno blue cones; rare, and affects men and women equally; ΔE 48.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.01:1WCAG large text: AAA
Contrast with black, large text2.62:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 14.4Royal blue · ΔE 24.6Midnight blue · ΔE 25.6Slate blue · ΔE 26.3Cornflower blue · ΔE 28.1Rebecca purple · ΔE 29.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.37, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9F6615
Analogous#15939F, #21159F
Triadic#9F154E, #4E9F15
Split complementary#9F2115, #939F15
Tetradic#9F1593, #9F6615, #159F21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#90B8F0
Lighter +30%#639BEA
Lighter +20%#367EE4
Lighter +10%#1B64CC
Darker −10%#0F3872
Darker −20%#092245
Darker −30%#030C18
Darker −40%#000000
More saturated +25%#004AB4
Less saturated −25%#2C5289

Channel breakdown

R21
G78
B159
Red21 (8.2%)
Green78 (30.6%)
Blue159 (62.4%)
Hue215.22°
Saturation (HSL)76.67%
Lightness35.29%
Dominant channelBlue
Hex per channelR 15 · G 4E · B 9F

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Every value on this page was computed from “154e9f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.