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Recognised as Colour

#B1D8DD

  • #B1D8DD
  • Cyan
  • Light
  • Nearest: Powder blue

#B1D8DD is a cyan with RGB values 177, 216, 221 and HSL 187°, 39%, 78%. It is a light colour, so black text on it reaches 13.7:1 contrast (AAA for normal text). The nearest named colour is Powder blue.

Colour values

#B1D8DD#B1D8DD
HEX#B1D8DD
RGBrgb(177, 216, 221)
RGB (0–1)0.6941, 0.8471, 0.8667
RGB percentages69.4%, 84.7%, 86.7%
HSLhsl(186.8, 39.3%, 78%)
HSV / HSBhsv(186.8, 19.9%, 86.7%)
CMYK19.9%, 2.3%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,655,389
CSS custom property--colour: #B1D8DD;

Brightness & contrast

Relative luminance0.63679WCAG 2.x, 0 is black and 1 is white
Perceived brightness205.7 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.74:1
Contrast with white1.53:1WCAG normal text: Fail
Contrast with black13.74:1WCAG normal text: AAA
Greyscale equivalent#D0D0D0
Inverted#4E2722

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#D2D5DDno red cones; affects about 1% of men; ΔE 12.5 from the original
Deuteranopia#CACEDDno green cones; the most common form, about 1% of men; ΔE 13.2 from the original
Tritanopia#A4DBD9no blue cones; rare, and affects men and women equally; ΔE 6.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.53:1WCAG large text: Fail
Contrast with black, large text13.74:1WCAG large text: AAA

Named colours

Powder blue · ΔE 3.6Light blue · ΔE 4.8Pale turquoise · ΔE 10.1Light grey · ΔE 13.5Gainsboro · ΔE 14Light steelblue · ΔE 14.4
Nearest named CSS colourPowder blue (#B0E0E6)ΔE 3.62, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDB6B1
Analogous#B1DDCC, #B1C2DD
Triadic#DDB1D8, #D8DDB1
Split complementary#DDB1C2, #DDCCB1
Tetradic#CCB1DD, #DDB6B1, #C2DDB1

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#F8FCFC
Lighter +10%#D5EAEC
Darker −10%#8DC6CE
Darker −20%#6AB4BE
Darker −30%#4AA0AB
Darker −40%#3B7E87
More saturated +25%#A3E3EB
Less saturated −25%#BFCDCF

Channel breakdown

R177
G216
B221
Red177 (69.4%)
Green216 (84.7%)
Blue221 (86.7%)
Hue186.82°
Saturation (HSL)39.29%
Lightness78.04%
Dominant channelBlue
Hex per channelR B1 · G D8 · B DD

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Every value on this page was computed from “b1d8dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.