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Recognised as Colour

#A1C5DA

  • #A1C5DA
  • Blue
  • Light
  • Nearest: Light steelblue

#A1C5DA is a blue with RGB values 161, 197, 218 and HSL 202°, 44%, 74%. It is a light colour, so black text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Light steelblue.

Colour values

#A1C5DA#A1C5DA
HEX#A1C5DA
RGBrgb(161, 197, 218)
RGB (0–1)0.6314, 0.7725, 0.8549
RGB percentages63.1%, 77.3%, 85.5%
HSLhsl(202.1, 43.5%, 74.3%)
HSV / HSBhsv(202.1, 26.1%, 85.5%)
CMYK26.1%, 9.6%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,601,946
CSS custom property--colour: #A1C5DA;

Brightness & contrast

Relative luminance0.52572WCAG 2.x, 0 is black and 1 is white
Perceived brightness189.6 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.51:1
Contrast with white1.82:1WCAG normal text: Fail
Contrast with black11.51:1WCAG normal text: AAA
Greyscale equivalent#BFBFBF
Inverted#5E3A25

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#BBC4DBno red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#B3BDDAno green cones; the most common form, about 1% of men; ΔE 9.9 from the original
Tritanopia#90CBCCno blue cones; rare, and affects men and women equally; ΔE 13.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.82:1WCAG large text: Fail
Contrast with black, large text11.51:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 6.1Light blue · ΔE 7.8Sky blue · ΔE 10.3Powder blue · ΔE 12.6Light skyblue · ΔE 14.7Silver · ΔE 16.1
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 6.1, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DAB6A1
Analogous#A1DAD3, #A1A8DA
Triadic#DAA1C5, #C5DAA1
Split complementary#DAA1A8, #DAD3A1
Tetradic#D3A1DA, #DAB6A1, #A9DAA1

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#EAF2F7
Lighter +10%#C6DCE8
Darker −10%#7CAECC
Darker −20%#5898BD
Darker −30%#407EA2
Darker −40%#31627E
More saturated +25%#91C9EA
Less saturated −25%#B1C1CA

Channel breakdown

R161
G197
B218
Red161 (63.1%)
Green197 (77.3%)
Blue218 (85.5%)
Hue202.11°
Saturation (HSL)43.51%
Lightness74.31%
Dominant channelBlue
Hex per channelR A1 · G C5 · B DA

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Every value on this page was computed from “a1c5da” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.