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Colour

#3A4248

  • #3A4248
  • Blue
  • Dark
  • Nearest: Dark slate grey

#3A4248 is a blue with RGB values 58, 66, 72 and HSL 206°, 11%, 25%. It is a dark colour, so white text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3A4248#3A4248
HEX#3A4248
RGBrgb(58, 66, 72)
RGB (0–1)0.2275, 0.2588, 0.2824
RGB percentages22.7%, 25.9%, 28.2%
HSLhsl(205.7, 10.8%, 25.5%)
HSV / HSBhsv(205.7, 19.4%, 28.2%)
CMYK19.4%, 8.3%, 0%, 71.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,818,056
CSS custom property--colour: #3A4248;

Brightness & contrast

Relative luminance0.05264WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.23:1
Contrast with white10.23:1WCAG normal text: AAA
Contrast with black2.05:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#C5BDB7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#404248no red cones; affects about 1% of men; ΔE 2.5 from the original
Deuteranopia#3E4048no green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#364344no blue cones; rare, and affects men and women equally; ΔE 4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.23:1WCAG large text: AAA
Contrast with black, large text2.05:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.7Dim grey · ΔE 17.7Slate grey · ΔE 26Gray · ΔE 26.6Black · ΔE 27.9Light slate grey · ΔE 29.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.69, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#48403A
Analogous#3A4847, #3A3B48
Triadic#483A42, #42483A
Split complementary#483A3B, #48473A
Tetradic#473A48, #48403A, #3B483A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9EA8B0
Lighter +30%#818F9A
Lighter +20%#687680
Lighter +10%#515C64
Darker −10%#23282C
Darker −20%#0C0E10
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2A4458
Less saturated −25%#414141

Channel breakdown

R58
G66
B72
Red58 (22.7%)
Green66 (25.9%)
Blue72 (28.2%)
Hue205.71°
Saturation (HSL)10.77%
Lightness25.49%
Dominant channelBlue
Hex per channelR 3A · G 42 · B 48

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Every value on this page was computed from “3a4248” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.