Colour

#128A5C

#128A5C
Cyan
Dark
Nearest: Sea green

#128A5C is a cyan with RGB values 18, 138, 92 and HSL 157°, 77%, 31%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Sea green.

Colour values

#128A5C#128A5C

HEX#128A5C

RGBrgb(18, 138, 92)

RGB (0–1)0.0706, 0.5412, 0.3608

RGB percentages7.1%, 54.1%, 36.1%

HSLhsl(157, 76.9%, 30.6%)

HSV / HSBhsv(157, 87%, 54.1%)

CMYK87%, 0%, 33.3%, 45.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,215,068

CSS custom property--colour: #128A5C;

Brightness & contrast

Relative luminance0.19078WCAG 2.x, 0 is black and 1 is white

Perceived brightness110.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.82:1

Contrast with white4.36:1WCAG normal text: Fail

Contrast with black4.82:1WCAG normal text: AA

Greyscale equivalent#6D6D6D

Inverted#ED75A3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#887F59no red cones; affects about 1% of men; ΔE 40 from the original

Deuteranopia#7B755Fno green cones; the most common form, about 1% of men; ΔE 40.8 from the original

Tritanopia#00897Eno blue cones; rare, and affects men and women equally; ΔE 20.9 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text4.36:1WCAG large text: AA

Contrast with black, large text4.82:1WCAG large text: AAA

Named colours

Sea green · ΔE 4.7 Medium seagreen · ΔE 17.7 Medium aquamarine · ΔE 26.4 Light seagreen · ΔE 27.4 Dark cyan · ΔE 27.7 Teal · ΔE 28.1

Nearest named CSS colourSea green (#2E8B57)ΔE 4.71, a close match

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#8A1240

Analogous#128A20, #127C8A

Triadic#5C128A, #8A5C12

Split complementary#8A127C, #8A2012

Tetradic#20128A, #8A1240, #7C8A12

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#7AEEC1

Lighter +30%#4DE8AD

Lighter +20%#20E298

Lighter +10%#18B77A

Darker −10%#0C5D3E

Darker −20%#063020

Darker −30%#000302

Darker −40%#000000

More saturated +25%#009C60

Less saturated −25%#257757

Channel breakdown

R18

G138

B92

Red18 (7.1%)

Green138 (54.1%)

Blue92 (36.1%)

Hue157°

Saturation (HSL)76.92%

Lightness30.59%

Dominant channelGreen

Hex per channelR 12 · G 8A · B 5C

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#128A5C

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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