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Recognised as Colour

#42A2FD

  • #42A2FD
  • Blue
  • Dark
  • Nearest: Cornflower blue

#42A2FD is a blue with RGB values 66, 162, 253 and HSL 209°, 98%, 63%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#42A2FD#42A2FD
HEX#42A2FD
RGBrgb(66, 162, 253)
RGB (0–1)0.2588, 0.6353, 0.9922
RGB percentages25.9%, 63.5%, 99.2%
HSLhsl(209.2, 97.9%, 62.5%)
HSV / HSBhsv(209.2, 73.9%, 99.2%)
CMYK73.9%, 36%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,367,101
CSS custom property--colour: #42A2FD;

Brightness & contrast

Relative luminance0.34091WCAG 2.x, 0 is black and 1 is white
Perceived brightness154.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.82:1
Contrast with white2.69:1WCAG normal text: Fail
Contrast with black7.82:1WCAG normal text: AAA
Greyscale equivalent#949494
Inverted#BD5D02

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#78A7FFno red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#5C96FBno green cones; the most common form, about 1% of men; ΔE 10.8 from the original
Tritanopia#00B8C3no blue cones; rare, and affects men and women equally; ΔE 51.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.69:1WCAG large text: Fail
Contrast with black, large text7.82:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 9.1Dodgerblue · ΔE 14.2Deep skyblue · ΔE 23.4Steel blue · ΔE 25.2Light skyblue · ΔE 31.4Royal blue · ΔE 32.3
Nearest named CSS colourCornflower blue (#6495ED)ΔE 9.08, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FD9D42
Analogous#42FDFB, #4244FD
Triadic#FD42A2, #A2FD42
Split complementary#FD4244, #FDFB42
Tetradic#FB42FD, #FD9D42, #44FD42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D9ECFF
Lighter +20%#A7D4FE
Lighter +10%#74BBFE
Darker −10%#1089FC
Darker −20%#026FD7
Darker −30%#0255A4
Darker −40%#013B72
More saturated +25%#40A2FF
Less saturated −25%#5AA1E5

Channel breakdown

R66
G162
B253
Red66 (25.9%)
Green162 (63.5%)
Blue253 (99.2%)
Hue209.2°
Saturation (HSL)97.91%
Lightness62.55%
Dominant channelBlue
Hex per channelR 42 · G A2 · B FD

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Every value on this page was computed from “42a2fd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.