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Recognised as Colour

#4375AB

  • #4375AB
  • Blue
  • Dark
  • Nearest: Steel blue

#4375AB is a blue with RGB values 67, 117, 171 and HSL 211°, 44%, 47%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#4375AB#4375AB
HEX#4375AB
RGBrgb(67, 117, 171)
RGB (0–1)0.2627, 0.4588, 0.6706
RGB percentages26.3%, 45.9%, 67.1%
HSLhsl(211.2, 43.7%, 46.7%)
HSV / HSBhsv(211.2, 60.8%, 67.1%)
CMYK60.8%, 31.6%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,421,035
CSS custom property--colour: #4375AB;

Brightness & contrast

Relative luminance0.16856WCAG 2.x, 0 is black and 1 is white
Perceived brightness112.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.8:1
Contrast with white4.8:1WCAG normal text: AA
Contrast with black4.37:1WCAG normal text: Fail
Greyscale equivalent#6E6E6E
Inverted#BC8A54

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5E78ADno red cones; affects about 1% of men; ΔE 6.3 from the original
Deuteranopia#506EAAno green cones; the most common form, about 1% of men; ΔE 7.1 from the original
Tritanopia#008188no blue cones; rare, and affects men and women equally; ΔE 34.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.8:1WCAG large text: AAA
Contrast with black, large text4.37:1WCAG large text: AA

Named colours

Steel blue · ΔE 6.2Cornflower blue · ΔE 22.7Slate grey · ΔE 23.9Light slate grey · ΔE 24.2Deep skyblue · ΔE 31.4Dark slateblue · ΔE 32.3
Nearest named CSS colourSteel blue (#4682B4)ΔE 6.24, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AB7943
Analogous#43A9AB, #4543AB
Triadic#AB4375, #75AB43
Split complementary#AB4543, #A9AB43
Tetradic#AB43A9, #AB7943, #43AB45

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CEDCEC
Lighter +30%#AAC3DE
Lighter +20%#85A9CF
Lighter +10%#608FC1
Darker −10%#355C86
Darker −20%#264362
Darker −30%#182A3D
Darker −40%#0A1118
More saturated +25%#2574C9
Less saturated −25%#61768D

Channel breakdown

R67
G117
B171
Red67 (26.3%)
Green117 (45.9%)
Blue171 (67.1%)
Hue211.15°
Saturation (HSL)43.7%
Lightness46.67%
Dominant channelBlue
Hex per channelR 43 · G 75 · B AB

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Every value on this page was computed from “4375ab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.