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Recognised as Colour

#55A3CF

  • #55A3CF
  • Blue
  • Dark
  • Nearest: Steel blue

#55A3CF is a blue with RGB values 85, 163, 207 and HSL 202°, 56%, 57%. It is a dark colour, so black text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#55A3CF#55A3CF
HEX#55A3CF
RGBrgb(85, 163, 207)
RGB (0–1)0.3333, 0.6392, 0.8118
RGB percentages33.3%, 63.9%, 81.2%
HSLhsl(201.6, 56%, 57.3%)
HSV / HSBhsv(201.6, 58.9%, 81.2%)
CMYK58.9%, 21.3%, 0%, 18.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,612,495
CSS custom property--colour: #55A3CF;

Brightness & contrast

Relative luminance0.32631WCAG 2.x, 0 is black and 1 is white
Perceived brightness150.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.53:1
Contrast with white2.79:1WCAG normal text: Fail
Contrast with black7.53:1WCAG normal text: AAA
Greyscale equivalent#969696
Inverted#AA5C30

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8EA2D1no red cones; affects about 1% of men; ΔE 15.8 from the original
Deuteranopia#7D95CEno green cones; the most common form, about 1% of men; ΔE 17.2 from the original
Tritanopia#00AEB2no 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 text2.79:1WCAG large text: Fail
Contrast with black, large text7.53:1WCAG large text: AAA

Named colours

Steel blue · ΔE 13.6Light skyblue · ΔE 15.9Deep skyblue · ΔE 16.8Sky blue · ΔE 17.9Light slate grey · ΔE 22.1Light steelblue · ΔE 22.8
Nearest named CSS colourSteel blue (#4682B4)ΔE 13.62, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CF8155
Analogous#55CFBE, #5566CF
Triadic#CF55A3, #A3CF55
Split complementary#CF5566, #CFBE55
Tetradic#BE55CF, #CF8155, #66CF55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F4F9FC
Lighter +30%#CCE4F1
Lighter +20%#A5CEE5
Lighter +10%#7DB9DA
Darker −10%#358BBC
Darker −20%#2A6E94
Darker −30%#1F506C
Darker −40%#133345
More saturated +25%#3AABEA
Less saturated −25%#709BB4

Channel breakdown

R85
G163
B207
Red85 (33.3%)
Green163 (63.9%)
Blue207 (81.2%)
Hue201.64°
Saturation (HSL)55.96%
Lightness57.25%
Dominant channelBlue
Hex per channelR 55 · G A3 · B CF

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Every value on this page was computed from “55a3cf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.