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Recognised as Colour

#2A8B9B

  • #2A8B9B
  • Cyan
  • Dark
  • Nearest: Dark cyan

#2A8B9B is a cyan with RGB values 42, 139, 155 and HSL 188°, 57%, 39%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Dark cyan.

Colour values

#2A8B9B#2A8B9B
HEX#2A8B9B
RGBrgb(42, 139, 155)
RGB (0–1)0.1647, 0.5451, 0.6078
RGB percentages16.5%, 54.5%, 60.8%
HSLhsl(188.5, 57.4%, 38.6%)
HSV / HSBhsv(188.5, 72.9%, 60.8%)
CMYK72.9%, 10.3%, 0%, 39.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,788,251
CSS custom property--colour: #2A8B9B;

Brightness & contrast

Relative luminance0.21324WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.26:1
Contrast with white3.99:1WCAG normal text: Fail
Contrast with black5.26:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#D57464

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7E869Cno red cones; affects about 1% of men; ΔE 24.4 from the original
Deuteranopia#6E7A9Bno green cones; the most common form, about 1% of men; ΔE 25.7 from the original
Tritanopia#009290no blue cones; rare, and affects men and women equally; ΔE 13.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.99:1WCAG large text: AA
Contrast with black, large text5.26:1WCAG large text: AAA

Named colours

Dark cyan · ΔE 11.5Teal · ΔE 11.7Cadetblue · ΔE 12.3Light slate grey · ΔE 20.7Slate grey · ΔE 20.8Light seagreen · ΔE 22.4
Nearest named CSS colourDark cyan (#008B8B)ΔE 11.48, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9B3A2A
Analogous#2A9B72, #2A539B
Triadic#9B2A8B, #8B9B2A
Split complementary#9B2A52, #9B722A
Tetradic#732A9B, #9B3A2A, #529B2A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A9DFE8
Lighter +30%#81D0DD
Lighter +20%#59C1D2
Lighter +10%#35AFC3
Darker −10%#1F6773
Darker −20%#14434B
Darker −30%#091F23
Darker −40%#000000
More saturated +25%#119DB4
Less saturated −25%#437982

Channel breakdown

R42
G139
B155
Red42 (16.5%)
Green139 (54.5%)
Blue155 (60.8%)
Hue188.5°
Saturation (HSL)57.36%
Lightness38.63%
Dominant channelBlue
Hex per channelR 2A · G 8B · B 9B

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Every value on this page was computed from “2a8b9b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.