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Recognised as Colour

#152D6A

  • #152D6A
  • Blue
  • Dark
  • Nearest: Dark slateblue

#152D6A is a blue with RGB values 21, 45, 106 and HSL 223°, 67%, 25%. It is a dark colour, so white text on it reaches 13:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#152D6A#152D6A
HEX#152D6A
RGBrgb(21, 45, 106)
RGB (0–1)0.0824, 0.1765, 0.4157
RGB percentages8.2%, 17.6%, 41.6%
HSLhsl(223.1, 66.9%, 24.9%)
HSV / HSBhsv(223.1, 80.2%, 41.6%)
CMYK80.2%, 57.5%, 0%, 58.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,387,882
CSS custom property--colour: #152D6A;

Brightness & contrast

Relative luminance0.03077WCAG 2.x, 0 is black and 1 is white
Perceived brightness51 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13:1
Contrast with white13:1WCAG normal text: AAA
Contrast with black1.62:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#EAD295

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00356Cno red cones; affects about 1% of men; ΔE 7.5 from the original
Deuteranopia#002D69no green cones; the most common form, about 1% of men; ΔE 2.6 from the original
Tritanopia#003C46no blue cones; rare, and affects men and women equally; ΔE 39.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13:1WCAG large text: AAA
Contrast with black, large text1.62:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15.7Midnight blue · ΔE 20.6Rebecca purple · ΔE 31.8Steel blue · ΔE 37.9Slate blue · ΔE 38Indigo · ΔE 39.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.67, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6A5215
Analogous#15586A, #27156A
Triadic#6A152D, #2D6A15
Split complementary#6A2815, #586A15
Tetradic#6A1558, #6A5215, #156A28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6A8BE1
Lighter +30%#3F6AD9
Lighter +20%#2651BF
Lighter +10%#1D3F95
Darker −10%#0D1B3F
Darker −20%#040915
Darker −30%#000000
Darker −40%#000000
More saturated +25%#05267A
Less saturated −25%#25345A

Channel breakdown

R21
G45
B106
Red21 (8.2%)
Green45 (17.6%)
Blue106 (41.6%)
Hue223.06°
Saturation (HSL)66.93%
Lightness24.9%
Dominant channelBlue
Hex per channelR 15 · G 2D · B 6A

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Every value on this page was computed from “152d6a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.