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Colour

#152F5F

  • #152F5F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#152F5F is a blue with RGB values 21, 47, 95 and HSL 219°, 64%, 23%. It is a dark colour, so white text on it reaches 13.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#152F5F#152F5F
HEX#152F5F
RGBrgb(21, 47, 95)
RGB (0–1)0.0824, 0.1843, 0.3725
RGB percentages8.2%, 18.4%, 37.3%
HSLhsl(218.9, 63.8%, 22.7%)
HSV / HSBhsv(218.9, 77.9%, 37.3%)
CMYK77.9%, 50.5%, 0%, 62.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,388,383
CSS custom property--colour: #152F5F;

Brightness & contrast

Relative luminance0.03019WCAG 2.x, 0 is black and 1 is white
Perceived brightness49.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.09:1
Contrast with white13.09:1WCAG normal text: AAA
Contrast with black1.6:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#EAD0A0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#153461no red cones; affects about 1% of men; ΔE 3.6 from the original
Deuteranopia#042D5Eno green cones; the most common form, about 1% of men; ΔE 2.1 from the original
Tritanopia#003A42no blue cones; rare, and affects men and women equally; ΔE 31.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.09:1WCAG large text: AAA
Contrast with black, large text1.6:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 22.8Midnight blue · ΔE 29.4Steel blue · ΔE 34.9Dark slate grey · ΔE 36.4Black · ΔE 38.4Rebecca purple · ΔE 39.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 22.8, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5F4515
Analogous#15545F, #20155F
Triadic#5F152F, #2F5F15
Split complementary#5F2015, #545F15
Tetradic#5F1554, #5F4515, #155F20

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#638EDD
Lighter +30%#3A70D3
Lighter +20%#2758B3
Lighter +10%#1E4489
Darker −10%#0C1A35
Darker −20%#03060B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#072B6E
Less saturated −25%#233351

Channel breakdown

R21
G47
B95
Red21 (8.2%)
Green47 (18.4%)
Blue95 (37.3%)
Hue218.92°
Saturation (HSL)63.79%
Lightness22.75%
Dominant channelBlue
Hex per channelR 15 · G 2F · B 5F

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Every value on this page was computed from “152f5f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.