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Colour

#90ADDF

  • #90ADDF
  • Blue
  • Dark
  • Nearest: Light steelblue

#90ADDF is a blue with RGB values 144, 173, 223 and HSL 218°, 55%, 72%. It is a dark colour, so black text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Light steelblue.

Colour values

#90ADDF#90ADDF
HEX#90ADDF
RGBrgb(144, 173, 223)
RGB (0–1)0.5647, 0.6784, 0.8745
RGB percentages56.5%, 67.8%, 87.5%
HSLhsl(218, 55.2%, 72%)
HSV / HSBhsv(218, 35.4%, 87.5%)
CMYK35.4%, 22.4%, 0%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,481,695
CSS custom property--colour: #90ADDF;

Brightness & contrast

Relative luminance0.41144WCAG 2.x, 0 is black and 1 is white
Perceived brightness171.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.23:1
Contrast with white2.28:1WCAG normal text: Fail
Contrast with black9.23:1WCAG normal text: AAA
Greyscale equivalent#AAAAAA
Inverted#6F5220

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9CB0E1no red cones; affects about 1% of men; ΔE 3.2 from the original
Deuteranopia#93A8DEno green cones; the most common form, about 1% of men; ΔE 3.8 from the original
Tritanopia#78B7BEno blue cones; rare, and affects men and women equally; ΔE 27.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.28:1WCAG large text: Fail
Contrast with black, large text9.23:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 15.9Light skyblue · ΔE 16Steel blue · ΔE 19.2Sky blue · ΔE 20.4Light slate grey · ΔE 22.9Cornflower blue · ΔE 23.7
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 15.86, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DFC290
Analogous#90D4DF, #9B90DF
Triadic#DF90AD, #ADDF90
Split complementary#DF9A90, #D4DF90
Tetradic#DF90D4, #DFC290, #90DF9A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#DFE7F6
Lighter +10%#B8CAEA
Darker −10%#6890D4
Darker −20%#4173C8
Darker −30%#305BA6
Darker −40%#24467F
More saturated +25%#7EA8F1
Less saturated −25%#A2B2CD

Channel breakdown

R144
G173
B223
Red144 (56.5%)
Green173 (67.8%)
Blue223 (87.5%)
Hue217.97°
Saturation (HSL)55.24%
Lightness71.96%
Dominant channelBlue
Hex per channelR 90 · G AD · B DF

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Every value on this page was computed from “90addf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.