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Recognised as Colour

#4878BC

  • #4878BC
  • Blue
  • Dark
  • Nearest: Steel blue

#4878BC is a blue with RGB values 72, 120, 188 and HSL 215°, 46%, 51%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#4878BC#4878BC
HEX#4878BC
RGBrgb(72, 120, 188)
RGB (0–1)0.2824, 0.4706, 0.7373
RGB percentages28.2%, 47.1%, 73.7%
HSLhsl(215.2, 46.4%, 51%)
HSV / HSBhsv(215.2, 61.7%, 73.7%)
CMYK61.7%, 36.2%, 0%, 26.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,749,500
CSS custom property--colour: #4878BC;

Brightness & contrast

Relative luminance0.18441WCAG 2.x, 0 is black and 1 is white
Perceived brightness118.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.69:1
Contrast with white4.48:1WCAG normal text: Fail
Contrast with black4.69:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#B78743

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5B7DBFno red cones; affects about 1% of men; ΔE 4 from the original
Deuteranopia#4B72BBno green cones; the most common form, about 1% of men; ΔE 4.7 from the original
Tritanopia#008791no blue cones; rare, and affects men and women equally; ΔE 41.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.48:1WCAG large text: AA
Contrast with black, large text4.69:1WCAG large text: AAA

Named colours

Steel blue · ΔE 12.6Cornflower blue · ΔE 15.4Dodgerblue · ΔE 25.1Dark slateblue · ΔE 28.5Light slate grey · ΔE 31Slate grey · ΔE 31
Nearest named CSS colourSteel blue (#4682B4)ΔE 12.61, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BC8C48
Analogous#48B2BC, #5248BC
Triadic#BC4878, #78BC48
Split complementary#BC5248, #B2BC48
Tetradic#BC48B2, #BC8C48, #48BC52

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DDE6F3
Lighter +30%#B8CBE5
Lighter +20%#93AFD7
Lighter +10%#6D94CA
Darker −10%#386099
Darker −20%#2A4974
Darker −30%#1D314E
Darker −40%#0F1A29
More saturated +25%#2973DB
Less saturated −25%#677D9D

Channel breakdown

R72
G120
B188
Red72 (28.2%)
Green120 (47.1%)
Blue188 (73.7%)
Hue215.17°
Saturation (HSL)46.4%
Lightness50.98%
Dominant channelBlue
Hex per channelR 48 · G 78 · B BC

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Every value on this page was computed from “4878bc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.