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Colour

#40A99D

  • #40A99D
  • Cyan
  • Dark
  • Nearest: Light seagreen

#40A99D is a cyan with RGB values 64, 169, 157 and HSL 173°, 45%, 46%. It is a dark colour, so black text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#40A99D#40A99D
HEX#40A99D
RGBrgb(64, 169, 157)
RGB (0–1)0.251, 0.6627, 0.6157
RGB percentages25.1%, 66.3%, 61.6%
HSLhsl(173.1, 45.1%, 45.7%)
HSV / HSBhsv(173.1, 62.1%, 66.3%)
CMYK62.1%, 0%, 7.1%, 33.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,237,725
CSS custom property--colour: #40A99D;

Brightness & contrast

Relative luminance0.319WCAG 2.x, 0 is black and 1 is white
Perceived brightness144.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.38:1
Contrast with white2.85:1WCAG normal text: Fail
Contrast with black7.38:1WCAG normal text: AAA
Greyscale equivalent#929292
Inverted#BF5662

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A1A09Dno red cones; affects about 1% of men; ΔE 33.1 from the original
Deuteranopia#91949Eno green cones; the most common form, about 1% of men; ΔE 34 from the original
Tritanopia#00ACA5no blue cones; rare, and affects men and women equally; ΔE 6.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.85:1WCAG large text: Fail
Contrast with black, large text7.38:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 6.4Dark cyan · ΔE 12.9Cadetblue · ΔE 14.1Medium turquoise · ΔE 15.4Teal · ΔE 16.6Medium aquamarine · ΔE 17.5
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 6.4, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A9404C
Analogous#40A969, #4081A9
Triadic#9D40A9, #A99D40
Split complementary#A94081, #A96940
Tetradic#6840A9, #A9404C, #80A940

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CAEBE7
Lighter +30%#A5DDD7
Lighter +20%#80CFC6
Lighter +10%#5BC1B5
Darker −10%#32847B
Darker −20%#245F58
Darker −30%#163A36
Darker −40%#081514
More saturated +25%#23C6B3
Less saturated −25%#5D8C87

Channel breakdown

R64
G169
B157
Red64 (25.1%)
Green169 (66.3%)
Blue157 (61.6%)
Hue173.14°
Saturation (HSL)45.06%
Lightness45.69%
Dominant channelGreen
Hex per channelR 40 · G A9 · B 9D

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Every value on this page was computed from “40a99d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.