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Recognised as Colour

#42DEF7

  • #42DEF7
  • Cyan
  • Light
  • Nearest: Dark turquoise

#42DEF7 is a cyan with RGB values 66, 222, 247 and HSL 188°, 92%, 61%. It is a light colour, so black text on it reaches 13:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#42DEF7#42DEF7
HEX#42DEF7
RGBrgb(66, 222, 247)
RGB (0–1)0.2588, 0.8706, 0.9686
RGB percentages25.9%, 87.1%, 96.9%
HSLhsl(188.3, 91.9%, 61.4%)
HSV / HSBhsv(188.3, 73.3%, 96.9%)
CMYK73.3%, 10.1%, 0%, 3.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,382,455
CSS custom property--colour: #42DEF7;

Brightness & contrast

Relative luminance0.60116WCAG 2.x, 0 is black and 1 is white
Perceived brightness192.8 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.02:1
Contrast with white1.61:1WCAG normal text: Fail
Contrast with black13.02:1WCAG normal text: AAA
Greyscale equivalent#BFBFBF
Inverted#BD2108

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C9D6F9no red cones; affects about 1% of men; ΔE 35.2 from the original
Deuteranopia#B0C4F7no green cones; the most common form, about 1% of men; ΔE 36.6 from the original
Tritanopia#00E9E6no blue cones; rare, and affects men and women equally; ΔE 18.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.61:1WCAG large text: Fail
Contrast with black, large text13.02:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 14.7Medium turquoise · ΔE 17.1Sky blue · ΔE 17.4Aqua · ΔE 21Cyan · ΔE 21Light skyblue · ΔE 21.6
Nearest named CSS colourDark turquoise (#00CED1)ΔE 14.71, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F75B42
Analogous#42F7B6, #4283F7
Triadic#F742DE, #DEF742
Split complementary#F74283, #F7B542
Tetradic#B642F7, #F75B42, #84F742

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D5F8FD
Lighter +20%#A4EFFB
Lighter +10%#73E7F9
Darker −10%#11D5F5
Darker −20%#09B0CA
Darker −30%#06859A
Darker −40%#045B69
More saturated +25%#3AE4FF
Less saturated −25%#5BCCDE

Channel breakdown

R66
G222
B247
Red66 (25.9%)
Green222 (87.1%)
Blue247 (96.9%)
Hue188.29°
Saturation (HSL)91.88%
Lightness61.37%
Dominant channelBlue
Hex per channelR 42 · G DE · B F7

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Every value on this page was computed from “42def7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.