Nerdulator> put something in

Recognised as Colour

#91AADD

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

#91AADD is a blue with RGB values 145, 170, 221 and HSL 220°, 53%, 72%. It is a dark colour, so black text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Light steelblue.

Colour values

#91AADD#91AADD
HEX#91AADD
RGBrgb(145, 170, 221)
RGB (0–1)0.5686, 0.6667, 0.8667
RGB percentages56.9%, 66.7%, 86.7%
HSLhsl(220.3, 52.8%, 71.8%)
HSV / HSBhsv(220.3, 34.4%, 86.7%)
CMYK34.4%, 23.1%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,546,461
CSS custom property--colour: #91AADD;

Brightness & contrast

Relative luminance0.3999WCAG 2.x, 0 is black and 1 is white
Perceived brightness169.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9:1
Contrast with white2.33:1WCAG normal text: Fail
Contrast with black9:1WCAG normal text: AAA
Greyscale equivalent#A8A8A8
Inverted#6E5522

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#99ADDFno red cones; affects about 1% of men; ΔE 2.1 from the original
Deuteranopia#91A7DCno green cones; the most common form, about 1% of men; ΔE 1.8 from the original
Tritanopia#7AB4BBno blue cones; rare, and affects men and women equally; ΔE 27.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.33:1WCAG large text: Fail
Contrast with black, large text9:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 16.8Light skyblue · ΔE 17.6Steel blue · ΔE 19Sky blue · ΔE 22Light slate grey · ΔE 22.8Cornflower blue · ΔE 22.8
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 16.77, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDC491
Analogous#91D0DD, #9E91DD
Triadic#DD91AA, #AADD91
Split complementary#DD9E91, #D0DD91
Tetradic#DD91D0, #DDC491, #91DD9E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#DFE6F5
Lighter +10%#B8C8E9
Darker −10%#6A8CD1
Darker −20%#436EC5
Darker −30%#3257A3
Darker −40%#26427C
More saturated +25%#7FA4EF
Less saturated −25%#A3B0CB

Channel breakdown

R145
G170
B221
Red145 (56.9%)
Green170 (66.7%)
Blue221 (86.7%)
Hue220.26°
Saturation (HSL)52.78%
Lightness71.76%
Dominant channelBlue
Hex per channelR 91 · G AA · B DD

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

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