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Recognised as Colour

#425F5F

  • #425F5F
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#425F5F is a cyan with RGB values 66, 95, 95 and HSL 180°, 18%, 32%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Dark slate grey.

Colour values

#425F5F#425F5F
HEX#425F5F
RGBrgb(66, 95, 95)
RGB (0–1)0.2588, 0.3725, 0.3725
RGB percentages25.9%, 37.3%, 37.3%
HSLhsl(180, 18%, 31.6%)
HSV / HSBhsv(180, 30.5%, 37.3%)
CMYK30.5%, 0%, 0%, 62.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,349,791
CSS custom property--colour: #425F5F;

Brightness & contrast

Relative luminance0.10169WCAG 2.x, 0 is black and 1 is white
Perceived brightness87.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.92:1
Contrast with white6.92:1WCAG normal text: AA
Contrast with black3.03:1WCAG normal text: Fail
Greyscale equivalent#595959
Inverted#BDA0A0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5B5C5Fno red cones; affects about 1% of men; ΔE 11 from the original
Deuteranopia#56585Fno green cones; the most common form, about 1% of men; ΔE 11.4 from the original
Tritanopia#38615Fno blue cones; rare, and affects men and women equally; ΔE 4.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.92:1WCAG large text: AAA
Contrast with black, large text3.03:1WCAG large text: AA

Named colours

Dark slate grey · ΔE 7Dim grey · ΔE 12.8Slate grey · ΔE 18.4Gray · ΔE 19.1Light slate grey · ΔE 21.1Teal · ΔE 21.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 6.98, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5F4242
Analogous#425F51, #42515F
Triadic#5F425F, #5F5F42
Split complementary#5F4251, #5F5142
Tetradic#51425F, #5F4242, #515F42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A9C4C4
Lighter +30%#8BAFAF
Lighter +20%#6D9A9A
Lighter +10%#577D7D
Darker −10%#2D4141
Darker −20%#182323
Darker −30%#030505
Darker −40%#000000
More saturated +25%#2E7373
Less saturated −25%#515151

Channel breakdown

R66
G95
B95
Red66 (25.9%)
Green95 (37.3%)
Blue95 (37.3%)
Hue180°
Saturation (HSL)18.01%
Lightness31.57%
Dominant channelGreen and Blue
Hex per channelR 42 · G 5F · B 5F

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Every value on this page was computed from “425f5f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.