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Recognised as Colour

#30487F

  • #30487F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#30487F is a blue with RGB values 48, 72, 127 and HSL 222°, 45%, 34%. It is a dark colour, so white text on it reaches 8.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#30487F#30487F
HEX#30487F
RGBrgb(48, 72, 127)
RGB (0–1)0.1882, 0.2824, 0.498
RGB percentages18.8%, 28.2%, 49.8%
HSLhsl(221.8, 45.1%, 34.3%)
HSV / HSBhsv(221.8, 62.2%, 49.8%)
CMYK62.2%, 43.3%, 0%, 50.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,164,287
CSS custom property--colour: #30487F;

Brightness & contrast

Relative luminance0.06795WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.9:1
Contrast with white8.9:1WCAG normal text: AAA
Contrast with black2.36:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#CFB780

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#304E81no red cones; affects about 1% of men; ΔE 4.2 from the original
Deuteranopia#25467Eno green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#00545Dno blue cones; rare, and affects men and women equally; ΔE 35.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.9:1WCAG large text: AAA
Contrast with black, large text2.36:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18.8Steel blue · ΔE 25Midnight blue · ΔE 31.5Slate grey · ΔE 33.7Cornflower blue · ΔE 34.2Light slate grey · ΔE 35.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.78, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7F6730
Analogous#30707F, #3F307F
Triadic#7F3048, #487F30
Split complementary#7F4030, #6F7F30
Tetradic#7F3070, #7F6730, #307F40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A0B2DB
Lighter +30%#7B94CD
Lighter +20%#5676BF
Lighter +10%#3E5DA4
Darker −10%#22335A
Darker −20%#141E35
Darker −30%#060910
Darker −40%#000000
More saturated +25%#1A3F95
Less saturated −25%#465169

Channel breakdown

R48
G72
B127
Red48 (18.8%)
Green72 (28.2%)
Blue127 (49.8%)
Hue221.77°
Saturation (HSL)45.14%
Lightness34.31%
Dominant channelBlue
Hex per channelR 30 · G 48 · B 7F

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Every value on this page was computed from “30487f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.