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Recognised as Colour

#538AA8

  • #538AA8
  • Blue
  • Dark
  • Nearest: Steel blue

#538AA8 is a blue with RGB values 83, 138, 168 and HSL 201°, 34%, 49%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#538AA8#538AA8
HEX#538AA8
RGBrgb(83, 138, 168)
RGB (0–1)0.3255, 0.5412, 0.6588
RGB percentages32.5%, 54.1%, 65.9%
HSLhsl(201.2, 33.9%, 49.2%)
HSV / HSBhsv(201.2, 50.6%, 65.9%)
CMYK50.6%, 17.9%, 0%, 34.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,474,984
CSS custom property--colour: #538AA8;

Brightness & contrast

Relative luminance0.22843WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.57:1
Contrast with white3.77:1WCAG normal text: Fail
Contrast with black5.57:1WCAG normal text: AA
Greyscale equivalent#808080
Inverted#AC7557

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7C89AAno red cones; affects about 1% of men; ΔE 13 from the original
Deuteranopia#707FA8no green cones; the most common form, about 1% of men; ΔE 14.4 from the original
Tritanopia#269294no blue cones; rare, and affects men and women equally; ΔE 22.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.77:1WCAG large text: AA
Contrast with black, large text5.57:1WCAG large text: AAA

Named colours

Steel blue · ΔE 12.3Light slate grey · ΔE 12.8Slate grey · ΔE 13.4Cadetblue · ΔE 18.4Gray · ΔE 23.6Teal · ΔE 24.1
Nearest named CSS colourSteel blue (#4682B4)ΔE 12.32, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A87153
Analogous#53A89C, #535FA8
Triadic#A8538A, #8AA853
Split complementary#A8535F, #A89C53
Tetradic#9C53A8, #A87153, #60A853

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DAE6ED
Lighter +30%#B8CFDC
Lighter +20%#96B8CB
Lighter +10%#74A1BA
Darker −10%#426E86
Darker −20%#315264
Darker −30%#203642
Darker −40%#101A1F
More saturated +25%#3493C7
Less saturated −25%#728189

Channel breakdown

R83
G138
B168
Red83 (32.5%)
Green138 (54.1%)
Blue168 (65.9%)
Hue201.18°
Saturation (HSL)33.86%
Lightness49.22%
Dominant channelBlue
Hex per channelR 53 · G 8A · B A8

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Every value on this page was computed from “538aa8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.