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Recognised as Colour

#42C1FA

  • #42C1FA
  • Cyan
  • Dark
  • Nearest: Deep skyblue

#42C1FA is a cyan with RGB values 66, 193, 250 and HSL 199°, 95%, 62%. It is a dark colour, so black text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#42C1FA#42C1FA
HEX#42C1FA
RGBrgb(66, 193, 250)
RGB (0–1)0.2588, 0.7569, 0.9804
RGB percentages25.9%, 75.7%, 98%
HSLhsl(198.6, 94.8%, 62%)
HSV / HSBhsv(198.6, 73.6%, 98%)
CMYK73.6%, 22.8%, 0%, 2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,375,034
CSS custom property--colour: #42C1FA;

Brightness & contrast

Relative luminance0.462WCAG 2.x, 0 is black and 1 is white
Perceived brightness174 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.24:1
Contrast with white2.05:1WCAG normal text: Fail
Contrast with black10.24:1WCAG normal text: AAA
Greyscale equivalent#AAAAAA
Inverted#BD3E05

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A5BFFDno red cones; affects about 1% of men; ΔE 22.8 from the original
Deuteranopia#8CADF9no green cones; the most common form, about 1% of men; ΔE 24.8 from the original
Tritanopia#00D0D4no blue cones; rare, and affects men and women equally; ΔE 33.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.05:1WCAG large text: Fail
Contrast with black, large text10.24:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 4.8Light skyblue · ΔE 12.6Sky blue · ΔE 17.7Steel blue · ΔE 25.2Light steelblue · ΔE 27.8Light blue · ΔE 29
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 4.82, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FA7B42
Analogous#42FAD7, #4265FA
Triadic#FA42C1, #C1FA42
Split complementary#FA4265, #FAD742
Tetradic#D742FA, #FA7B42, #65FA42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D7F2FE
Lighter +20%#A5E2FD
Lighter +10%#74D1FB
Darker −10%#10B1F9
Darker −20%#0692D0
Darker −30%#046F9F
Darker −40%#034C6D
More saturated +25%#3DC3FF
Less saturated −25%#5AB8E2

Channel breakdown

R66
G193
B250
Red66 (25.9%)
Green193 (75.7%)
Blue250 (98%)
Hue198.59°
Saturation (HSL)94.85%
Lightness61.96%
Dominant channelBlue
Hex per channelR 42 · G C1 · B FA

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Every value on this page was computed from “42c1fa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.