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Recognised as Colour

#1F5259

  • #1F5259
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#1F5259 is a cyan with RGB values 31, 82, 89 and HSL 187°, 48%, 24%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1F5259#1F5259
HEX#1F5259
RGBrgb(31, 82, 89)
RGB (0–1)0.1216, 0.3216, 0.349
RGB percentages12.2%, 32.2%, 34.9%
HSLhsl(187.2, 48.3%, 23.5%)
HSV / HSBhsv(187.2, 65.2%, 34.9%)
CMYK65.2%, 7.9%, 0%, 65.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,052,697
CSS custom property--colour: #1F5259;

Brightness & contrast

Relative luminance0.07047WCAG 2.x, 0 is black and 1 is white
Perceived brightness71.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.72:1
Contrast with white8.72:1WCAG normal text: AAA
Contrast with black2.41:1WCAG normal text: Fail
Greyscale equivalent#484848
Inverted#E0ADA6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4B4F59no red cones; affects about 1% of men; ΔE 15.6 from the original
Deuteranopia#424859no green cones; the most common form, about 1% of men; ΔE 16.5 from the original
Tritanopia#005654no blue cones; rare, and affects men and women equally; ΔE 8.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.72:1WCAG large text: AAA
Contrast with black, large text2.41:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 6.2Dim grey · ΔE 21.2Teal · ΔE 21.8Slate grey · ΔE 24.3Dark cyan · ΔE 25.9Light slate grey · ΔE 27
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 6.15, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#59261F
Analogous#1F5943, #1F3559
Triadic#591F52, #52591F
Split complementary#591F35, #59431F
Tetradic#431F59, #59261F, #35591F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#75C4CF
Lighter +30%#4FB4C2
Lighter +20%#3998A5
Lighter +10%#2C757F
Darker −10%#122F33
Darker −20%#050C0D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#105D68
Less saturated −25%#2E474A

Channel breakdown

R31
G82
B89
Red31 (12.2%)
Green82 (32.2%)
Blue89 (34.9%)
Hue187.24°
Saturation (HSL)48.33%
Lightness23.53%
Dominant channelBlue
Hex per channelR 1F · G 52 · B 59

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Every value on this page was computed from “1f5259” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.