Nerdulator> put something in

Recognised as Colour

#151F65

  • #151F65
  • Blue
  • Dark
  • Nearest: Midnight blue

#151F65 is a blue with RGB values 21, 31, 101 and HSL 233°, 66%, 24%. It is a dark colour, so white text on it reaches 14.8:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#151F65#151F65
HEX#151F65
RGBrgb(21, 31, 101)
RGB (0–1)0.0824, 0.1216, 0.3961
RGB percentages8.2%, 12.2%, 39.6%
HSLhsl(232.5, 65.6%, 23.9%)
HSV / HSBhsv(232.5, 79.2%, 39.6%)
CMYK79.2%, 69.3%, 0%, 60.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,384,293
CSS custom property--colour: #151F65;

Brightness & contrast

Relative luminance0.02079WCAG 2.x, 0 is black and 1 is white
Perceived brightness43.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.83:1
Contrast with white14.83:1WCAG normal text: AAA
Contrast with black1.42:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#EAE09A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002B67no red cones; affects about 1% of men; ΔE 10.9 from the original
Deuteranopia#002464no green cones; the most common form, about 1% of men; ΔE 6.2 from the original
Tritanopia#00323Fno blue cones; rare, and affects men and women equally; ΔE 44.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.83:1WCAG large text: AAA
Contrast with black, large text1.42:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 11.3Dark slateblue · ΔE 15.2Rebecca purple · ΔE 26.5Indigo · ΔE 31Navy · ΔE 33.2Slate blue · ΔE 35.7
Nearest named CSS colourMidnight blue (#191970)ΔE 11.27, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#655B15
Analogous#154765, #331565
Triadic#65151F, #1F6515
Split complementary#653315, #476515
Tetradic#651547, #655B15, #156533

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6776DF
Lighter +30%#3C50D7
Lighter +20%#2739B9
Lighter +10%#1E2C8F
Darker −10%#0C123B
Darker −20%#030511
Darker −30%#000000
Darker −40%#000000
More saturated +25%#061474
Less saturated −25%#242A56

Channel breakdown

R21
G31
B101
Red21 (8.2%)
Green31 (12.2%)
Blue101 (39.6%)
Hue232.5°
Saturation (HSL)65.57%
Lightness23.92%
Dominant channelBlue
Hex per channelR 15 · G 1F · B 65

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “151f65” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.