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Recognised as Colour

#345A57

  • #345A57
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#345A57 is a cyan with RGB values 52, 90, 87 and HSL 175°, 27%, 28%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#345A57#345A57
HEX#345A57
RGBrgb(52, 90, 87)
RGB (0–1)0.2039, 0.3529, 0.3412
RGB percentages20.4%, 35.3%, 34.1%
HSLhsl(175.3, 26.8%, 27.8%)
HSV / HSBhsv(175.3, 42.2%, 35.3%)
CMYK42.2%, 0%, 3.3%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,430,999
CSS custom property--colour: #345A57;

Brightness & contrast

Relative luminance0.08731WCAG 2.x, 0 is black and 1 is white
Perceived brightness80.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.65:1
Contrast with white7.65:1WCAG normal text: AAA
Contrast with black2.75:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#CBA5A8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#565657no red cones; affects about 1% of men; ΔE 14.7 from the original
Deuteranopia#4F5157no green cones; the most common form, about 1% of men; ΔE 15 from the original
Tritanopia#255C59no blue cones; rare, and affects men and women equally; ΔE 4.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.65:1WCAG large text: AAA
Contrast with black, large text2.75:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 5.1Dim grey · ΔE 17.1Teal · ΔE 20.3Slate grey · ΔE 22.7Gray · ΔE 23.2Dark cyan · ΔE 24.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 5.09, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A3437
Analogous#345A44, #344A5A
Triadic#57345A, #5A5734
Split complementary#5A344A, #5A4434
Tetradic#44345A, #5A3437, #4A5A34

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#97C3BF
Lighter +30%#77B0AC
Lighter +20%#599B95
Lighter +10%#477A76
Darker −10%#213A38
Darker −20%#0F1919
Darker −30%#000000
Darker −40%#000000
More saturated +25%#226C66
Less saturated −25%#464848

Channel breakdown

R52
G90
B87
Red52 (20.4%)
Green90 (35.3%)
Blue87 (34.1%)
Hue175.26°
Saturation (HSL)26.76%
Lightness27.84%
Dominant channelGreen
Hex per channelR 34 · G 5A · B 57

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Every value on this page was computed from “345a57” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.