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Recognised as Colour

#28646E

  • #28646E
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#28646E is a cyan with RGB values 40, 100, 110 and HSL 189°, 47%, 29%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Dark slate grey.

Colour values

#28646E#28646E
HEX#28646E
RGBrgb(40, 100, 110)
RGB (0–1)0.1569, 0.3922, 0.4314
RGB percentages15.7%, 39.2%, 43.1%
HSLhsl(188.6, 46.7%, 29.4%)
HSV / HSBhsv(188.6, 63.6%, 43.1%)
CMYK63.6%, 9.1%, 0%, 56.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,647,150
CSS custom property--colour: #28646E;

Brightness & contrast

Relative luminance0.10691WCAG 2.x, 0 is black and 1 is white
Perceived brightness87.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.69:1
Contrast with white6.69:1WCAG normal text: AA
Contrast with black3.14:1WCAG normal text: Fail
Greyscale equivalent#585858
Inverted#D79B91

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5B606Fno red cones; affects about 1% of men; ΔE 17.7 from the original
Deuteranopia#51596Eno green cones; the most common form, about 1% of men; ΔE 18.1 from the original
Tritanopia#006967no blue cones; rare, and affects men and women equally; ΔE 11.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.69:1WCAG large text: AAA
Contrast with black, large text3.14:1WCAG large text: AA

Named colours

Dark slate grey · ΔE 11.8Teal · ΔE 16.1Slate grey · ΔE 19.5Dark cyan · ΔE 19.8Dim grey · ΔE 20.4Light slate grey · ΔE 21.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 11.76, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6E3228
Analogous#286E55, #28416E
Triadic#6E2864, #646E28
Split complementary#6E2841, #6E5528
Tetradic#55286E, #6E3228, #416E28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8DCBD5
Lighter +30%#67BAC8
Lighter +20%#43A8B9
Lighter +10%#368693
Darker −10%#1A4249
Darker −20%#0D2023
Darker −30%#000000
Darker −40%#000000
More saturated +25%#157181
Less saturated −25%#3B575B

Channel breakdown

R40
G100
B110
Red40 (15.7%)
Green100 (39.2%)
Blue110 (43.1%)
Hue188.57°
Saturation (HSL)46.67%
Lightness29.41%
Dominant channelBlue
Hex per channelR 28 · G 64 · B 6E

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Every value on this page was computed from “28646e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.