Nerdulator> put something in

Recognised as Colour

#2A8183

  • #2A8183
  • Cyan
  • Dark
  • Nearest: Teal

#2A8183 is a cyan with RGB values 42, 129, 131 and HSL 181°, 51%, 34%. It is a dark colour, so white text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Teal.

Colour values

#2A8183#2A8183
HEX#2A8183
RGBrgb(42, 129, 131)
RGB (0–1)0.1647, 0.5059, 0.5137
RGB percentages16.5%, 50.6%, 51.4%
HSLhsl(181.3, 51.4%, 33.9%)
HSV / HSBhsv(181.3, 67.9%, 51.4%)
CMYK67.9%, 1.5%, 0%, 48.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,785,667
CSS custom property--colour: #2A8183;

Brightness & contrast

Relative luminance0.17831WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.6:1
Contrast with white4.6:1WCAG normal text: AA
Contrast with black4.57:1WCAG normal text: AA
Greyscale equivalent#6F6F6F
Inverted#D57E7C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#787B83no red cones; affects about 1% of men; ΔE 25.4 from the original
Deuteranopia#6B7184no green cones; the most common form, about 1% of men; ΔE 26.7 from the original
Tritanopia#008581no blue cones; rare, and affects men and women equally; ΔE 6.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.6:1WCAG large text: AAA
Contrast with black, large text4.57:1WCAG large text: AAA

Named colours

Teal · ΔE 4.5Dark cyan · ΔE 6.8Cadetblue · ΔE 12.9Light seagreen · ΔE 21.2Dark slate grey · ΔE 22.6Slate grey · ΔE 22.7
Nearest named CSS colourTeal (#008080)ΔE 4.5, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#832C2A
Analogous#2A8359, #2A5483
Triadic#832A81, #81832A
Split complementary#832A54, #83592A
Tetradic#592A83, #832C2A, #54832A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9ADDDF
Lighter +30%#74D0D2
Lighter +20%#4DC3C6
Lighter +10%#36A7AA
Darker −10%#1E5B5C
Darker −20%#113536
Darker −30%#050F0F
Darker −40%#000000
More saturated +25%#149699
Less saturated −25%#406C6D

Channel breakdown

R42
G129
B131
Red42 (16.5%)
Green129 (50.6%)
Blue131 (51.4%)
Hue181.35°
Saturation (HSL)51.45%
Lightness33.92%
Dominant channelBlue
Hex per channelR 2A · G 81 · B 83

Keep nerding

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

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “2a8183” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.