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Recognised as Colour

#59B8FF

  • #59B8FF
  • Blue
  • Dark
  • Nearest: Deep skyblue

#59B8FF is a blue with RGB values 89, 184, 255 and HSL 206°, 100%, 67%. It is a dark colour, so black text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#59B8FF#59B8FF
HEX#59B8FF
RGBrgb(89, 184, 255)
RGB (0–1)0.349, 0.7216, 1
RGB percentages34.9%, 72.2%, 100%
HSLhsl(205.7, 100%, 67.5%)
HSV / HSBhsv(205.7, 65.1%, 100%)
CMYK65.1%, 27.8%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,880,063
CSS custom property--colour: #59B8FF;

Brightness & contrast

Relative luminance0.43625WCAG 2.x, 0 is black and 1 is white
Perceived brightness172.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.72:1
Contrast with white2.16:1WCAG normal text: Fail
Contrast with black9.72:1WCAG normal text: AAA
Greyscale equivalent#A9A9A9
Inverted#A64700

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#98B9FFno red cones; affects about 1% of men; ΔE 14.1 from the original
Deuteranopia#81A9FEno green cones; the most common form, about 1% of men; ΔE 16.3 from the original
Tritanopia#00C9D1no blue cones; rare, and affects men and women equally; ΔE 41.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.16:1WCAG large text: Fail
Contrast with black, large text9.72:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 11Light skyblue · ΔE 17.2Cornflower blue · ΔE 19.8Steel blue · ΔE 22.6Sky blue · ΔE 24.6Dodgerblue · ΔE 29
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 11.01, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFA059
Analogous#59FFF3, #5965FF
Triadic#FF59B8, #B8FF59
Split complementary#FF5965, #FFF359
Tetradic#F359FF, #FFA059, #65FF59

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F2F9FF
Lighter +20%#BFE4FF
Lighter +10%#8CCEFF
Darker −10%#26A2FF
Darker −20%#008AF2
Darker −30%#006DBF
Darker −40%#00508C
More saturated +25%#59B8FF
Less saturated −25%#6EB5EA

Channel breakdown

R89
G184
B255
Red89 (34.9%)
Green184 (72.2%)
Blue255 (100%)
Hue205.66°
Saturation (HSL)100%
Lightness67.45%
Dominant channelBlue
Hex per channelR 59 · G B8 · B FF

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Every value on this page was computed from “59b8ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.