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Recognised as Colour

#2A375F

  • #2A375F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2A375F is a blue with RGB values 42, 55, 95 and HSL 225°, 39%, 27%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2A375F#2A375F
HEX#2A375F
RGBrgb(42, 55, 95)
RGB (0–1)0.1647, 0.2157, 0.3725
RGB percentages16.5%, 21.6%, 37.3%
HSLhsl(225.3, 38.7%, 26.9%)
HSV / HSBhsv(225.3, 55.8%, 37.3%)
CMYK55.8%, 42.1%, 0%, 62.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,766,687
CSS custom property--colour: #2A375F;

Brightness & contrast

Relative luminance0.04051WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.6:1
Contrast with white11.6:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#D5C8A0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#273B61no red cones; affects about 1% of men; ΔE 3.1 from the original
Deuteranopia#21375Eno green cones; the most common form, about 1% of men; ΔE 2.6 from the original
Tritanopia#114046no blue cones; rare, and affects men and women equally; ΔE 27.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.6:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 25.7Dark slate grey · ΔE 30.1Steel blue · ΔE 31.6Dim grey · ΔE 33.6Slate grey · ΔE 34.1Midnight blue · ΔE 35
Nearest named CSS colourDark slateblue (#483D8B)ΔE 25.75, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5F522A
Analogous#2A525F, #372A5F
Triadic#5F2A37, #375F2A
Split complementary#5F372A, #525F2A
Tetradic#5F2A52, #5F522A, #2A5F37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8A9ACB
Lighter +30%#667BBC
Lighter +20%#4960A6
Lighter +10%#3A4B82
Darker −10%#1A233C
Darker −20%#0B0E18
Darker −30%#000000
Darker −40%#000000
More saturated +25%#192E70
Less saturated −25%#3B404E

Channel breakdown

R42
G55
B95
Red42 (16.5%)
Green55 (21.6%)
Blue95 (37.3%)
Hue225.28°
Saturation (HSL)38.69%
Lightness26.86%
Dominant channelBlue
Hex per channelR 2A · G 37 · B 5F

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Every value on this page was computed from “2a375f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.