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Recognised as Colour

#150C31

  • #150C31
  • Blue
  • Dark
  • Nearest: Black

#150C31 is a blue with RGB values 21, 12, 49 and HSL 255°, 61%, 12%. It is a dark colour, so white text on it reaches 18.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#150C31#150C31
HEX#150C31
RGBrgb(21, 12, 49)
RGB (0–1)0.0824, 0.0471, 0.1922
RGB percentages8.2%, 4.7%, 19.2%
HSLhsl(254.6, 60.7%, 12%)
HSV / HSBhsv(254.6, 75.5%, 19.2%)
CMYK57.1%, 75.5%, 0%, 80.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,379,377
CSS custom property--colour: #150C31;

Brightness & contrast

Relative luminance0.00644WCAG 2.x, 0 is black and 1 is white
Perceived brightness22.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.6:1
Contrast with white18.6:1WCAG normal text: AAA
Contrast with black1.13:1WCAG normal text: Fail
Greyscale equivalent#111111
Inverted#EAF3CE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001432no red cones; affects about 1% of men; ΔE 10 from the original
Deuteranopia#001230no green cones; the most common form, about 1% of men; ΔE 9.8 from the original
Tritanopia#0C151Cno blue cones; rare, and affects men and women equally; ΔE 23.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.6:1WCAG large text: AAA
Contrast with black, large text1.13:1WCAG large text: Fail

Named colours

Black · ΔE 28Midnight blue · ΔE 33.1Dark slateblue · ΔE 33.4Dark slate grey · ΔE 41.7Rebecca purple · ΔE 45.8Dim grey · ΔE 47.3
Nearest named CSS colourBlack (#000000)ΔE 27.95, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#28310C
Analogous#0C1631, #270C31
Triadic#31150C, #0C3115
Split complementary#31280C, #16310C
Tetradic#310C16, #28310C, #0C3127

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5E3ACF
Lighter +30%#4A2AAC
Lighter +20%#382083
Lighter +10%#27165A
Darker −10%#030208
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#110439
Less saturated −25%#191429

Channel breakdown

R21
G12
B49
Red21 (8.2%)
Green12 (4.7%)
Blue49 (19.2%)
Hue254.59°
Saturation (HSL)60.66%
Lightness11.96%
Dominant channelBlue
Hex per channelR 15 · G 0C · B 31

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Every value on this page was computed from “150c31” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.