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Recognised as Colour

#91B7DE

  • #91B7DE
  • Blue
  • Dark
  • Nearest: Light steelblue

#91B7DE is a blue with RGB values 145, 183, 222 and HSL 210°, 54%, 72%. It is a dark colour, so black text on it reaches 10:1 contrast (AAA for normal text). The nearest named colour is Light steelblue.

Colour values

#91B7DE#91B7DE
HEX#91B7DE
RGBrgb(145, 183, 222)
RGB (0–1)0.5686, 0.7176, 0.8706
RGB percentages56.9%, 71.8%, 87.1%
HSLhsl(210.4, 53.8%, 72%)
HSV / HSBhsv(210.4, 34.7%, 87.1%)
CMYK34.7%, 17.6%, 0%, 12.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,549,790
CSS custom property--colour: #91B7DE;

Brightness & contrast

Relative luminance0.45161WCAG 2.x, 0 is black and 1 is white
Perceived brightness177.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.03:1
Contrast with white2.09:1WCAG normal text: Fail
Contrast with black10.03:1WCAG normal text: AAA
Greyscale equivalent#B2B2B2
Inverted#6E4821

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A8B8E0no red cones; affects about 1% of men; ΔE 7.1 from the original
Deuteranopia#9FB0DDno green cones; the most common form, about 1% of men; ΔE 7.7 from the original
Tritanopia#78C0C4no blue cones; rare, and affects men and women equally; ΔE 23.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.09:1WCAG large text: Fail
Contrast with black, large text10.03:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 10.3Light skyblue · ΔE 11.1Sky blue · ΔE 13.2Light blue · ΔE 17.9Light slate grey · ΔE 21.2Steel blue · ΔE 22.2
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 10.28, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DEB891
Analogous#91DDDE, #9291DE
Triadic#DE91B7, #B7DE91
Split complementary#DE9291, #DDDE91
Tetradic#DE91DD, #DEB891, #91DE91

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#DFEAF6
Lighter +10%#B8D1EA
Darker −10%#6A9DD2
Darker −20%#4384C6
Darker −30%#316AA5
Darker −40%#26517D
More saturated +25%#7FB7F0
Less saturated −25%#A3B7CC

Channel breakdown

R145
G183
B222
Red145 (56.9%)
Green183 (71.8%)
Blue222 (87.1%)
Hue210.39°
Saturation (HSL)53.85%
Lightness71.96%
Dominant channelBlue
Hex per channelR 91 · G B7 · B DE

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Every value on this page was computed from “91b7de” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.