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Recognised as Colour

#33A5EA

  • #33A5EA
  • Blue
  • Dark
  • Nearest: Deep skyblue

#33A5EA is a blue with RGB values 51, 165, 234 and HSL 203°, 81%, 56%. It is a dark colour, so black text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#33A5EA#33A5EA
HEX#33A5EA
RGBrgb(51, 165, 234)
RGB (0–1)0.2, 0.6471, 0.9176
RGB percentages20%, 64.7%, 91.8%
HSLhsl(202.6, 81.3%, 55.9%)
HSV / HSBhsv(202.6, 78.2%, 91.8%)
CMYK78.2%, 29.5%, 0%, 8.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,384,810
CSS custom property--colour: #33A5EA;

Brightness & contrast

Relative luminance0.33555WCAG 2.x, 0 is black and 1 is white
Perceived brightness151.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.71:1
Contrast with white2.72:1WCAG normal text: Fail
Contrast with black7.71:1WCAG normal text: AAA
Greyscale equivalent#929292
Inverted#CC5A15

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#84A6EDno red cones; affects about 1% of men; ΔE 15.9 from the original
Deuteranopia#6B95E9no green cones; the most common form, about 1% of men; ΔE 18.2 from the original
Tritanopia#00B6BDno blue cones; rare, and affects men and women equally; ΔE 39.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.72:1WCAG large text: Fail
Contrast with black, large text7.71:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 12.3Steel blue · ΔE 17.1Cornflower blue · ΔE 18.7Light skyblue · ΔE 21.5Sky blue · ΔE 27.4Dodgerblue · ΔE 27.5
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 12.34, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EA7833
Analogous#33EAD4, #3349EA
Triadic#EA33A5, #A5EA33
Split complementary#EA3349, #EAD433
Tetradic#D433EA, #EA7833, #49EA33

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ECF7FD
Lighter +30%#BEE2F8
Lighter +20%#8FCEF4
Lighter +10%#61B9EF
Darker −10%#168CD4
Darker −20%#116EA6
Darker −30%#0C4F78
Darker −40%#083149
More saturated +25%#1EAAFF
Less saturated −25%#4F9ECE

Channel breakdown

R51
G165
B234
Red51 (20%)
Green165 (64.7%)
Blue234 (91.8%)
Hue202.62°
Saturation (HSL)81.33%
Lightness55.88%
Dominant channelBlue
Hex per channelR 33 · G A5 · B EA

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Every value on this page was computed from “33a5ea” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.