Nerdulator> put something in

Recognised as Colour

#4E78AB

  • #4E78AB
  • Blue
  • Dark
  • Nearest: Steel blue

#4E78AB is a blue with RGB values 78, 120, 171 and HSL 213°, 37%, 49%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#4E78AB#4E78AB
HEX#4E78AB
RGBrgb(78, 120, 171)
RGB (0–1)0.3059, 0.4706, 0.6706
RGB percentages30.6%, 47.1%, 67.1%
HSLhsl(212.9, 37.3%, 48.8%)
HSV / HSBhsv(212.9, 54.4%, 67.1%)
CMYK54.4%, 29.8%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,142,699
CSS custom property--colour: #4E78AB;

Brightness & contrast

Relative luminance0.17993WCAG 2.x, 0 is black and 1 is white
Perceived brightness116.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.6:1
Contrast with white4.57:1WCAG normal text: AA
Contrast with black4.6:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#B18754

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#637BADno red cones; affects about 1% of men; ΔE 5.2 from the original
Deuteranopia#5872AAno green cones; the most common form, about 1% of men; ΔE 6 from the original
Tritanopia#17848Ano blue cones; rare, and affects men and women equally; ΔE 33.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.57:1WCAG large text: AAA
Contrast with black, large text4.6:1WCAG large text: AAA

Named colours

Steel blue · ΔE 5.6Slate grey · ΔE 21.5Light slate grey · ΔE 21.7Cornflower blue · ΔE 23.3Deep skyblue · ΔE 31.4Gray · ΔE 31.9
Nearest named CSS colourSteel blue (#4682B4)ΔE 5.56, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AB814E
Analogous#4EA7AB, #524EAB
Triadic#AB4E78, #78AB4E
Split complementary#AB524E, #A7AB4E
Tetradic#AB4EA7, #AB814E, #4EAB52

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D8E1ED
Lighter +30%#B5C7DD
Lighter +20%#92ADCD
Lighter +10%#6F92BD
Darker −10%#3E5F88
Darker −20%#2E4765
Darker −30%#1E2E42
Darker −40%#0E161F
More saturated +25%#2F75CA
Less saturated −25%#6D7B8C

Channel breakdown

R78
G120
B171
Red78 (30.6%)
Green120 (47.1%)
Blue171 (67.1%)
Hue212.9°
Saturation (HSL)37.35%
Lightness48.82%
Dominant channelBlue
Hex per channelR 4E · G 78 · B AB

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “4e78ab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.