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Recognised as Colour

#375F8A

  • #375F8A
  • Blue
  • Dark
  • Nearest: Steel blue

#375F8A is a blue with RGB values 55, 95, 138 and HSL 211°, 43%, 38%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#375F8A#375F8A
HEX#375F8A
RGBrgb(55, 95, 138)
RGB (0–1)0.2157, 0.3725, 0.5412
RGB percentages21.6%, 37.3%, 54.1%
HSLhsl(211.1, 43%, 37.8%)
HSV / HSBhsv(211.1, 60.1%, 54.1%)
CMYK60.1%, 31.2%, 0%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,628,938
CSS custom property--colour: #375F8A;

Brightness & contrast

Relative luminance0.10832WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.63:1
Contrast with white6.63:1WCAG normal text: AA
Contrast with black3.17:1WCAG normal text: Fail
Greyscale equivalent#5A5A5A
Inverted#C8A075

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4D618Cno red cones; affects about 1% of men; ΔE 5.6 from the original
Deuteranopia#425989no green cones; the most common form, about 1% of men; ΔE 6.3 from the original
Tritanopia#00696Eno blue cones; rare, and affects men and women equally; ΔE 29.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.63:1WCAG large text: AAA
Contrast with black, large text3.17:1WCAG large text: AA

Named colours

Steel blue · ΔE 14.3Slate grey · ΔE 22.2Light slate grey · ΔE 23.8Dark slate grey · ΔE 28.1Dim grey · ΔE 28.6Dark slateblue · ΔE 31
Nearest named CSS colourSteel blue (#4682B4)ΔE 14.3, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8A6237
Analogous#37888A, #39378A
Triadic#8A375F, #5F8A37
Split complementary#8A3837, #898A37
Tetradic#8A3788, #8A6237, #378A38

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AEC6DF
Lighter +30%#8AACD0
Lighter +20%#6592C2
Lighter +10%#4678AE
Darker −10%#284666
Darker −20%#1A2D41
Darker −30%#0B141D
Darker −40%#000000
More saturated +25%#1F5EA2
Less saturated −25%#4F6072

Channel breakdown

R55
G95
B138
Red55 (21.6%)
Green95 (37.3%)
Blue138 (54.1%)
Hue211.08°
Saturation (HSL)43.01%
Lightness37.84%
Dominant channelBlue
Hex per channelR 37 · G 5F · B 8A

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Every value on this page was computed from “375f8a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.