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Recognised as Colour

#388AA3

  • #388AA3
  • Cyan
  • Dark
  • Nearest: Cadetblue

#388AA3 is a cyan with RGB values 56, 138, 163 and HSL 194°, 49%, 43%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Cadetblue.

Colour values

#388AA3#388AA3
HEX#388AA3
RGBrgb(56, 138, 163)
RGB (0–1)0.2196, 0.5412, 0.6392
RGB percentages22%, 54.1%, 63.9%
HSLhsl(194, 48.9%, 42.9%)
HSV / HSBhsv(194, 65.6%, 63.9%)
CMYK65.6%, 15.3%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,705,507
CSS custom property--colour: #388AA3;

Brightness & contrast

Relative luminance0.21662WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.33:1
Contrast with white3.94:1WCAG normal text: Fail
Contrast with black5.33:1WCAG normal text: AA
Greyscale equivalent#7A7A7A
Inverted#C7755C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7B87A4no red cones; affects about 1% of men; ΔE 19.6 from the original
Deuteranopia#6C7BA3no green cones; the most common form, about 1% of men; ΔE 21.4 from the original
Tritanopia#009292no blue cones; rare, and affects men and women equally; ΔE 18.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.94:1WCAG large text: AA
Contrast with black, large text5.33:1WCAG large text: AAA

Named colours

Cadetblue · ΔE 15.4Steel blue · ΔE 17.2Light slate grey · ΔE 17.5Slate grey · ΔE 17.7Teal · ΔE 17.9Dark cyan · ΔE 18.1
Nearest named CSS colourCadetblue (#5F9EA0)ΔE 15.43, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A35138
Analogous#38A386, #3855A3
Triadic#A3388A, #8AA338
Split complementary#A33855, #A38638
Tetradic#8638A3, #A35138, #55A338

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BEDFE9
Lighter +30%#98CCDC
Lighter +20%#72B9CF
Lighter +10%#4CA6C2
Darker −10%#2B6A7D
Darker −20%#1E4A57
Darker −30%#112A31
Darker −40%#04090B
More saturated +25%#1D99BE
Less saturated −25%#537B88

Channel breakdown

R56
G138
B163
Red56 (22%)
Green138 (54.1%)
Blue163 (63.9%)
Hue194.02°
Saturation (HSL)48.86%
Lightness42.94%
Dominant channelBlue
Hex per channelR 38 · G 8A · B A3

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Every value on this page was computed from “388aa3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.