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Recognised as Colour

#42D499

  • #42D499
  • Cyan
  • Light
  • Nearest: Medium seagreen

#42D499 is a cyan with RGB values 66, 212, 153 and HSL 156°, 63%, 55%. It is a light colour, so black text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#42D499#42D499
HEX#42D499
RGBrgb(66, 212, 153)
RGB (0–1)0.2588, 0.8314, 0.6
RGB percentages25.9%, 83.1%, 60%
HSLhsl(155.8, 62.9%, 54.5%)
HSV / HSBhsv(155.8, 68.9%, 83.1%)
CMYK68.9%, 0%, 27.8%, 16.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,379,801
CSS custom property--colour: #42D499;

Brightness & contrast

Relative luminance0.50545WCAG 2.x, 0 is black and 1 is white
Perceived brightness174.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.11:1
Contrast with white1.89:1WCAG normal text: Fail
Contrast with black11.11:1WCAG normal text: AAA
Greyscale equivalent#B1B1B1
Inverted#BD2B66

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#D1C596no red cones; affects about 1% of men; ΔE 49.7 from the original
Deuteranopia#BEB79Dno green cones; the most common form, about 1% of men; ΔE 50.4 from the original
Tritanopia#00D4C4no blue cones; rare, and affects men and women equally; ΔE 23.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.89:1WCAG large text: Fail
Contrast with black, large text11.11:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 13.3Medium aquamarine · ΔE 17Aquamarine · ΔE 19Light green · ΔE 22.1Turquoise · ΔE 24.2Pale green · ΔE 25.2
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 13.26, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D4427D
Analogous#42D450, #42C6D4
Triadic#9942D4, #D49942
Split complementary#D442C6, #D45042
Tetradic#5042D4, #D4427D, #C6D442

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E8FAF3
Lighter +30%#BFF0DC
Lighter +20%#95E7C6
Lighter +10%#6CDDAF
Darker −10%#2AB97F
Darker −20%#218F63
Darker −30%#176646
Darker −40%#0E3C29
More saturated +25%#25F19F
Less saturated −25%#5FB793

Channel breakdown

R66
G212
B153
Red66 (25.9%)
Green212 (83.1%)
Blue153 (60%)
Hue155.75°
Saturation (HSL)62.93%
Lightness54.51%
Dominant channelGreen
Hex per channelR 42 · G D4 · B 99

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Every value on this page was computed from “42d499” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.