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Recognised as Colour

#018C8D

  • #018C8D
  • Cyan
  • Dark
  • Nearest: Dark cyan

#018C8D is a cyan with RGB values 1, 140, 141 and HSL 180°, 99%, 28%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Dark cyan.

Colour values

#018C8D#018C8D
HEX#018C8D
RGBrgb(1, 140, 141)
RGB (0–1)0.0039, 0.549, 0.5529
RGB percentages0.4%, 54.9%, 55.3%
HSLhsl(180.4, 98.6%, 27.8%)
HSV / HSBhsv(180.4, 99.3%, 55.3%)
CMYK99.3%, 0.7%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer101,517
CSS custom property--colour: #018C8D;

Brightness & contrast

Relative luminance0.20686WCAG 2.x, 0 is black and 1 is white
Perceived brightness117.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.14:1
Contrast with white4.09:1WCAG normal text: Fail
Contrast with black5.14:1WCAG normal text: AA
Greyscale equivalent#6F6F6F
Inverted#FE7372

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#82858Dno red cones; affects about 1% of men; ΔE 31.5 from the original
Deuteranopia#71788Eno green cones; the most common form, about 1% of men; ΔE 33 from the original
Tritanopia#00918Cno blue cones; rare, and affects men and women equally; ΔE 4.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.09:1WCAG large text: AA
Contrast with black, large text5.14:1WCAG large text: AAA

Named colours

Dark cyan · ΔE 0.7Teal · ΔE 4.7Cadetblue · ΔE 13.9Light seagreen · ΔE 15.3Dark turquoise · ΔE 25Medium turquoise · ΔE 25.3
Nearest named CSS colourDark cyan (#008B8B)ΔE 0.72, indistinguishable to the eye
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D0201
Analogous#018D48, #01468D
Triadic#8D018C, #8C8D01
Split complementary#8D0146, #8D4801
Tetradic#48018D, #8D0201, #468D01

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5CFDFE
Lighter +30%#2AFCFD
Lighter +20%#02F1F2
Lighter +10%#01BEC0
Darker −10%#015A5A
Darker −20%#002728
Darker −30%#000000
Darker −40%#000000
More saturated +25%#008D8E
Less saturated −25%#137B7B

Channel breakdown

R1
G140
B141
Red1 (0.4%)
Green140 (54.9%)
Blue141 (55.3%)
Hue180.43°
Saturation (HSL)98.59%
Lightness27.84%
Dominant channelBlue
Hex per channelR 01 · G 8C · B 8D

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Every value on this page was computed from “018c8d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.