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Recognised as Colour

#315A77

  • #315A77
  • Blue
  • Dark
  • Nearest: Dark slate grey

#315A77 is a blue with RGB values 49, 90, 119 and HSL 205°, 42%, 33%. It is a dark colour, so white text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#315A77#315A77
HEX#315A77
RGBrgb(49, 90, 119)
RGB (0–1)0.1922, 0.3529, 0.4667
RGB percentages19.2%, 35.3%, 46.7%
HSLhsl(204.9, 41.7%, 32.9%)
HSV / HSBhsv(204.9, 58.8%, 46.7%)
CMYK58.8%, 24.4%, 0%, 53.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,234,423
CSS custom property--colour: #315A77;

Brightness & contrast

Relative luminance0.09297WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.34:1
Contrast with white7.34:1WCAG normal text: AAA
Contrast with black2.86:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#CEA588

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4D5A78no red cones; affects about 1% of men; ΔE 8.5 from the original
Deuteranopia#445376no green cones; the most common form, about 1% of men; ΔE 9.2 from the original
Tritanopia#006164no blue cones; rare, and affects men and women equally; ΔE 21.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.34:1WCAG large text: AAA
Contrast with black, large text2.86:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 19Slate grey · ΔE 19.5Steel blue · ΔE 19.6Light slate grey · ΔE 21.8Dim grey · ΔE 22.8Gray · ΔE 27.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 19.05, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#774E31
Analogous#317771, #313777
Triadic#77315A, #5A7731
Split complementary#773137, #777131
Tetradic#713177, #774E31, #377731

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9DBFD7
Lighter +30%#79A7C8
Lighter +20%#5590B9
Lighter +10%#40759B
Darker −10%#223F53
Darker −20%#13232F
Darker −30%#04080B
Darker −40%#000000
More saturated +25%#1C5E8C
Less saturated −25%#465662

Channel breakdown

R49
G90
B119
Red49 (19.2%)
Green90 (35.3%)
Blue119 (46.7%)
Hue204.86°
Saturation (HSL)41.67%
Lightness32.94%
Dominant channelBlue
Hex per channelR 31 · G 5A · B 77

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Every value on this page was computed from “315a77” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.