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Colour

#63B4A9

  • #63B4A9
  • Cyan
  • Dark
  • Nearest: Light seagreen

#63B4A9 is a cyan with RGB values 99, 180, 169 and HSL 172°, 35%, 55%. It is a dark colour, so black text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#63B4A9#63B4A9
HEX#63B4A9
RGBrgb(99, 180, 169)
RGB (0–1)0.3882, 0.7059, 0.6627
RGB percentages38.8%, 70.6%, 66.3%
HSLhsl(171.9, 35.1%, 54.7%)
HSV / HSBhsv(171.9, 45%, 70.6%)
CMYK45%, 0%, 6.1%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,534,313
CSS custom property--colour: #63B4A9;

Brightness & contrast

Relative luminance0.3816WCAG 2.x, 0 is black and 1 is white
Perceived brightness158.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.63:1
Contrast with white2.43:1WCAG normal text: Fail
Contrast with black8.63:1WCAG normal text: AAA
Greyscale equivalent#A2A2A2
Inverted#9C4B56

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#ADACA9no red cones; affects about 1% of men; ΔE 27.7 from the original
Deuteranopia#9FA2AAno green cones; the most common form, about 1% of men; ΔE 28.2 from the original
Tritanopia#40B7B0no blue cones; rare, and affects men and women equally; ΔE 7.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.43:1WCAG large text: Fail
Contrast with black, large text8.63:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 11.1Cadetblue · ΔE 11.8Medium turquoise · ΔE 14.6Medium aquamarine · ΔE 16.8Dark cyan · ΔE 17.6Dark turquoise · ΔE 18.4
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 11.11, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B4636E
Analogous#63B481, #6397B4
Triadic#A963B4, #B4A963
Split complementary#B46397, #B48163
Tetradic#8163B4, #B4636E, #97B463

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EDF6F5
Lighter +30%#CAE6E2
Lighter +20%#A8D5CF
Lighter +10%#85C5BC
Darker −10%#4A9A8F
Darker −20%#39786F
Darker −30%#29554F
Darker −40%#18332F
More saturated +25%#46D1BE
Less saturated −25%#809794

Channel breakdown

R99
G180
B169
Red99 (38.8%)
Green180 (70.6%)
Blue169 (66.3%)
Hue171.85°
Saturation (HSL)35.06%
Lightness54.71%
Dominant channelGreen
Hex per channelR 63 · G B4 · B A9

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Every value on this page was computed from “63b4a9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.