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Colour

#303D43

  • #303D43
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#303D43 is a cyan with RGB values 48, 61, 67 and HSL 199°, 17%, 23%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#303D43#303D43
HEX#303D43
RGBrgb(48, 61, 67)
RGB (0–1)0.1882, 0.2392, 0.2627
RGB percentages18.8%, 23.9%, 26.3%
HSLhsl(198.9, 16.5%, 22.5%)
HSV / HSBhsv(198.9, 28.4%, 26.3%)
CMYK28.4%, 9%, 0%, 73.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,161,411
CSS custom property--colour: #303D43;

Brightness & contrast

Relative luminance0.04371WCAG 2.x, 0 is black and 1 is white
Perceived brightness58.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.2:1
Contrast with white11.2:1WCAG normal text: AAA
Contrast with black1.87:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#CFC2BC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3A3C43no red cones; affects about 1% of men; ΔE 4.6 from the original
Deuteranopia#373A43no green cones; the most common form, about 1% of men; ΔE 4.7 from the original
Tritanopia#2A3F3Fno blue cones; rare, and affects men and women equally; ΔE 5.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.2:1WCAG large text: AAA
Contrast with black, large text1.87:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.4Dim grey · ΔE 20.6Black · ΔE 25.7Slate grey · ΔE 28.5Gray · ΔE 29.5Light slate grey · ΔE 31.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.42, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#433630
Analogous#30433F, #303443
Triadic#43303D, #3D4330
Split complementary#433034, #433F30
Tetradic#3F3043, #433630, #344330

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#90A5AF
Lighter +30%#728D9A
Lighter +20%#5B737E
Lighter +10%#455861
Darker −10%#1B2225
Darker −20%#050708
Darker −30%#000000
Darker −40%#000000
More saturated +25%#224251
Less saturated −25%#3A3A3A

Channel breakdown

R48
G61
B67
Red48 (18.8%)
Green61 (23.9%)
Blue67 (26.3%)
Hue198.95°
Saturation (HSL)16.52%
Lightness22.55%
Dominant channelBlue
Hex per channelR 30 · G 3D · B 43

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Every value on this page was computed from “303d43” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.