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Recognised as Colour

#00585B

  • #00585B
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#00585B is a cyan with RGB values 0, 88, 91 and HSL 182°, 100%, 18%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#00585B#00585B
HEX#00585B
RGBrgb(0, 88, 91)
RGB (0–1)0, 0.3451, 0.3569
RGB percentages0%, 34.5%, 35.7%
HSLhsl(182, 100%, 17.8%)
HSV / HSBhsv(182, 100%, 35.7%)
CMYK100%, 3.3%, 0%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer22,619
CSS custom property--colour: #00585B;

Brightness & contrast

Relative luminance0.07735WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.25:1
Contrast with white8.25:1WCAG normal text: AAA
Contrast with black2.55:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#FFA7A4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#51535Bno red cones; affects about 1% of men; ΔE 22.4 from the original
Deuteranopia#454B5Bno green cones; the most common form, about 1% of men; ΔE 22.8 from the original
Tritanopia#005C59no blue cones; rare, and affects men and women equally; ΔE 4.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.25:1WCAG large text: AAA
Contrast with black, large text2.55:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.6Teal · ΔE 16.7Dark cyan · ΔE 21.1Dim grey · ΔE 25.2Slate grey · ΔE 27.2Cadetblue · ΔE 27.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.62, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B0300
Analogous#005B30, #002B5B
Triadic#5B0058, #585B00
Split complementary#5B002B, #5B3000
Tetradic#30005B, #5B0300, #2B5B00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#28F8FF
Lighter +30%#00ECF4
Lighter +20%#00BBC1
Lighter +10%#00898E
Darker −10%#002728
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00585B
Less saturated −25%#0B4D50

Channel breakdown

R0
G88
B91
Red0 (0%)
Green88 (34.5%)
Blue91 (35.7%)
Hue181.98°
Saturation (HSL)100%
Lightness17.84%
Dominant channelBlue
Hex per channelR 00 · G 58 · B 5B

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Every value on this page was computed from “00585b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.