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Recognised as Colour

#91B0D8

  • #91B0D8
  • Blue
  • Dark
  • Nearest: Light steelblue

#91B0D8 is a blue with RGB values 145, 176, 216 and HSL 214°, 48%, 71%. It is a dark colour, so black text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Light steelblue.

Colour values

#91B0D8#91B0D8
HEX#91B0D8
RGBrgb(145, 176, 216)
RGB (0–1)0.5686, 0.6902, 0.8471
RGB percentages56.9%, 69%, 84.7%
HSLhsl(213.8, 47.7%, 70.8%)
HSV / HSBhsv(213.8, 32.9%, 84.7%)
CMYK32.9%, 18.5%, 0%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,547,992
CSS custom property--colour: #91B0D8;

Brightness & contrast

Relative luminance0.42028WCAG 2.x, 0 is black and 1 is white
Perceived brightness172.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.41:1
Contrast with white2.23:1WCAG normal text: Fail
Contrast with black9.41:1WCAG normal text: AAA
Greyscale equivalent#ACACAC
Inverted#6E4F27

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A2B1DAno red cones; affects about 1% of men; ΔE 5.3 from the original
Deuteranopia#9AAAD7no green cones; the most common form, about 1% of men; ΔE 5.9 from the original
Tritanopia#7BB9BDno blue cones; rare, and affects men and women equally; ΔE 23.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.23:1WCAG large text: Fail
Contrast with black, large text9.41:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 11.3Light skyblue · ΔE 14Sky blue · ΔE 16.2Light slate grey · ΔE 19.5Light blue · ΔE 20.2Steel blue · ΔE 20.5
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 11.3, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D8B991
Analogous#91D3D8, #9691D8
Triadic#D891B0, #B0D891
Split complementary#D89591, #D3D891
Tetradic#D891D3, #D8B991, #91D896

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#DCE6F3
Lighter +10%#B7CBE5
Darker −10%#6B95CB
Darker −20%#467ABD
Darker −30%#36629A
Darker −40%#294A74
More saturated +25%#7EAEEB
Less saturated −25%#A4B2C5

Channel breakdown

R145
G176
B216
Red145 (56.9%)
Green176 (69%)
Blue216 (84.7%)
Hue213.8°
Saturation (HSL)47.65%
Lightness70.78%
Dominant channelBlue
Hex per channelR 91 · G B0 · B D8

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Every value on this page was computed from “91b0d8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.