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Recognised as Colour

#018A58

  • #018A58
  • Cyan
  • Dark
  • Nearest: Sea green

#018A58 is a cyan with RGB values 1, 138, 88 and HSL 158°, 99%, 27%. 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

#018A58#018A58
HEX#018A58
RGBrgb(1, 138, 88)
RGB (0–1)0.0039, 0.5412, 0.3451
RGB percentages0.4%, 54.1%, 34.5%
HSLhsl(158.1, 98.6%, 27.3%)
HSV / HSBhsv(158.1, 99.3%, 54.1%)
CMYK99.3%, 0%, 36.2%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer100,952
CSS custom property--colour: #018A58;

Brightness & contrast

Relative luminance0.18888WCAG 2.x, 0 is black and 1 is white
Perceived brightness109.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.78:1
Contrast with white4.4:1WCAG normal text: Fail
Contrast with black4.78:1WCAG normal text: AA
Greyscale equivalent#696969
Inverted#FE75A7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#887E55no red cones; affects about 1% of men; ΔE 42 from the original
Deuteranopia#7B745Bno green cones; the most common form, about 1% of men; ΔE 42.8 from the original
Tritanopia#00897Dno blue cones; rare, and affects men and women equally; ΔE 22.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.4:1WCAG large text: AA
Contrast with black, large text4.78:1WCAG large text: AAA

Named colours

Sea green · ΔE 5Medium seagreen · ΔE 16.5Forest green · ΔE 27.5Medium aquamarine · ΔE 27.6Dark green · ΔE 27.8Light seagreen · ΔE 29.5
Nearest named CSS colourSea green (#2E8B57)ΔE 5.04, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8A0133
Analogous#018A13, #01778A
Triadic#58018A, #8A5801
Split complementary#8A0177, #8A1301
Tetradic#14018A, #8A0133, #788A01

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#59FEC2
Lighter +30%#27FDAF
Lighter +20%#02EF99
Lighter +10%#01BD78
Darker −10%#015738
Darker −20%#002517
Darker −30%#000000
Darker −40%#000000
More saturated +25%#008B58
Less saturated −25%#127953

Channel breakdown

R1
G138
B88
Red1 (0.4%)
Green138 (54.1%)
Blue88 (34.5%)
Hue158.1°
Saturation (HSL)98.56%
Lightness27.25%
Dominant channelGreen
Hex per channelR 01 · G 8A · B 58

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Every value on this page was computed from “018a58” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.