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Recognised as Colour

#536F87

  • #536F87
  • Blue
  • Dark
  • Nearest: Slate grey

#536F87 is a blue with RGB values 83, 111, 135 and HSL 208°, 24%, 43%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#536F87#536F87
HEX#536F87
RGBrgb(83, 111, 135)
RGB (0–1)0.3255, 0.4353, 0.5294
RGB percentages32.5%, 43.5%, 52.9%
HSLhsl(207.7, 23.9%, 42.7%)
HSV / HSBhsv(207.7, 38.5%, 52.9%)
CMYK38.5%, 17.8%, 0%, 47.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,468,039
CSS custom property--colour: #536F87;

Brightness & contrast

Relative luminance0.14957WCAG 2.x, 0 is black and 1 is white
Perceived brightness106.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.26:1
Contrast with white5.26:1WCAG normal text: AA
Contrast with black3.99:1WCAG normal text: Fail
Greyscale equivalent#6B6B6B
Inverted#AC9078

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#656F88no red cones; affects about 1% of men; ΔE 6.2 from the original
Deuteranopia#5F6987no green cones; the most common form, about 1% of men; ΔE 7.5 from the original
Tritanopia#417577no blue cones; rare, and affects men and women equally; ΔE 16.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.26:1WCAG large text: AAA
Contrast with black, large text3.99:1WCAG large text: AA

Named colours

Slate grey · ΔE 9.5Light slate grey · ΔE 11.7Dim grey · ΔE 16.9Steel blue · ΔE 17.2Gray · ΔE 18.7Dark slate grey · ΔE 20.8
Nearest named CSS colourSlate grey (#708090)ΔE 9.48, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#876B53
Analogous#538785, #535587
Triadic#87536F, #6F8753
Split complementary#875355, #878553
Tetradic#855387, #876B53, #558753

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C9D4DD
Lighter +30%#A9BBCA
Lighter +20%#89A2B7
Lighter +10%#6A89A3
Darker −10%#405567
Darker −20%#2C3B48
Darker −30%#192128
Darker −40%#050709
More saturated +25%#3871A2
Less saturated −25%#6D6D6D

Channel breakdown

R83
G111
B135
Red83 (32.5%)
Green111 (43.5%)
Blue135 (52.9%)
Hue207.69°
Saturation (HSL)23.85%
Lightness42.75%
Dominant channelBlue
Hex per channelR 53 · G 6F · B 87

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Every value on this page was computed from “536f87” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.