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Recognised as Colour

#6370AC

  • #6370AC
  • Blue
  • Dark
  • Nearest: Steel blue

#6370AC is a blue with RGB values 99, 112, 172 and HSL 229°, 31%, 53%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#6370AC#6370AC
HEX#6370AC
RGBrgb(99, 112, 172)
RGB (0–1)0.3882, 0.4392, 0.6745
RGB percentages38.8%, 43.9%, 67.5%
HSLhsl(229.3, 30.5%, 53.1%)
HSV / HSBhsv(229.3, 42.4%, 67.5%)
CMYK42.4%, 34.9%, 0%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,516,908
CSS custom property--colour: #6370AC;

Brightness & contrast

Relative luminance0.1722WCAG 2.x, 0 is black and 1 is white
Perceived brightness116.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.73:1
Contrast with white4.73:1WCAG normal text: AA
Contrast with black4.44:1WCAG normal text: Fail
Greyscale equivalent#727272
Inverted#9C8F53

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5B76AEno red cones; affects about 1% of men; ΔE 5.3 from the original
Deuteranopia#5570ABno green cones; the most common form, about 1% of men; ΔE 4.1 from the original
Tritanopia#4B7C86no blue cones; rare, and affects men and women equally; ΔE 33.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.73:1WCAG large text: AAA
Contrast with black, large text4.44:1WCAG large text: AA

Named colours

Steel blue · ΔE 15.6Cornflower blue · ΔE 20.7Dark slateblue · ΔE 24.7Slate grey · ΔE 26.9Light slate grey · ΔE 27.1Medium purple · ΔE 31.3
Nearest named CSS colourSteel blue (#4682B4)ΔE 15.64, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AC9F63
Analogous#6395AC, #7A63AC
Triadic#AC6370, #70AC63
Split complementary#AC7B63, #94AC63
Tetradic#AC6395, #AC9F63, #63AC7B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E8EAF3
Lighter +30%#C7CCE1
Lighter +20%#A6ADCF
Lighter +10%#848FBE
Darker −10%#4C5890
Darker −20%#3B446E
Darker −30%#292F4D
Darker −40%#171B2C
More saturated +25%#455DCA
Less saturated −25%#81838E

Channel breakdown

R99
G112
B172
Red99 (38.8%)
Green112 (43.9%)
Blue172 (67.5%)
Hue229.32°
Saturation (HSL)30.54%
Lightness53.14%
Dominant channelBlue
Hex per channelR 63 · G 70 · B AC

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Every value on this page was computed from “6370ac” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.