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Colour

#99BBDD

  • #99BBDD
  • Blue
  • Dark
  • Nearest: Light steelblue

#99BBDD is a blue with RGB values 153, 187, 221 and HSL 210°, 50%, 73%. It is a dark colour, so black text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Light steelblue.

Colour values

#99BBDD#99BBDD
HEX#99BBDD
HEX (short)#9BD
RGBrgb(153, 187, 221)
RGB (0–1)0.6, 0.7333, 0.8667
RGB percentages60%, 73.3%, 86.7%
HSLhsl(210, 50%, 73.3%)
HSV / HSBhsv(210, 30.8%, 86.7%)
CMYK30.8%, 15.4%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,075,101
CSS custom property--colour: #99BBDD;

Brightness & contrast

Relative luminance0.47533WCAG 2.x, 0 is black and 1 is white
Perceived brightness181.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.51:1
Contrast with white2:1WCAG normal text: Fail
Contrast with black10.51:1WCAG normal text: AAA
Greyscale equivalent#B6B6B6
Inverted#664422

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#AEBBDFno red cones; affects about 1% of men; ΔE 7 from the original
Deuteranopia#A6B4DCno green cones; the most common form, about 1% of men; ΔE 7.5 from the original
Tritanopia#84C3C6no blue cones; rare, and affects men and women equally; ΔE 20.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2:1WCAG large text: Fail
Contrast with black, large text10.51:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 7.2Light skyblue · ΔE 11.8Sky blue · ΔE 12.2Light blue · ΔE 15Powder blue · ΔE 20.2Light slate grey · ΔE 21
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 7.15, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDBB99
Analogous#99DDDD, #9999DD
Triadic#DD99BB, #BBDD99
Split complementary#DD9999, #DDDD99
Tetradic#DD99DD, #DDBB99, #99DD99

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#E6EEF7
Lighter +10%#BFD5EA
Darker −10%#73A2D0
Darker −20%#4D88C4
Darker −30%#376FA6
Darker −40%#2A5580
More saturated +25%#88BBEE
Less saturated −25%#AABBCC

Channel breakdown

R153
G187
B221
Red153 (60%)
Green187 (73.3%)
Blue221 (86.7%)
Hue210°
Saturation (HSL)50%
Lightness73.33%
Dominant channelBlue
Hex per channelR 99 · G BB · B DD

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Every value on this page was computed from “99bbdd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.