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Colour

#104EB8

  • #104EB8
  • Blue
  • Dark
  • Nearest: Royal blue

#104EB8 is a blue with RGB values 16, 78, 184 and HSL 218°, 84%, 39%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Royal blue.

Colour values

#104EB8#104EB8
HEX#104EB8
RGBrgb(16, 78, 184)
RGB (0–1)0.0627, 0.3059, 0.7216
RGB percentages6.3%, 30.6%, 72.2%
HSLhsl(217.9, 84%, 39.2%)
HSV / HSBhsv(217.9, 91.3%, 72.2%)
CMYK91.3%, 57.6%, 0%, 27.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,068,728
CSS custom property--colour: #104EB8;

Brightness & contrast

Relative luminance0.0902WCAG 2.x, 0 is black and 1 is white
Perceived brightness86.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.49:1
Contrast with white7.49:1WCAG normal text: AAA
Contrast with black2.8:1WCAG normal text: Fail
Greyscale equivalent#484848
Inverted#EFB147

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005CBCno red cones; affects about 1% of men; ΔE 10.2 from the original
Deuteranopia#004EB6no green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#00697Bno blue cones; rare, and affects men and women equally; ΔE 61 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.49:1WCAG large text: AAA
Contrast with black, large text2.8:1WCAG large text: Fail

Named colours

Royal blue · ΔE 12.9Slate blue · ΔE 15.8Dark slateblue · ΔE 19.7Rebecca purple · ΔE 23.8Medium slateblue · ΔE 24.1Midnight blue · ΔE 24.5
Nearest named CSS colourRoyal blue (#4169E1)ΔE 12.85, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B87A10
Analogous#10A2B8, #2610B8
Triadic#B8104E, #4EB810
Split complementary#B82610, #A2B810
Tetradic#B810A2, #B87A10, #10B826

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9DBEF7
Lighter +30%#6F9FF2
Lighter +20%#4080EE
Lighter +10%#1462E7
Darker −10%#0C3A89
Darker −20%#08265A
Darker −30%#04122B
Darker −40%#000000
More saturated +25%#004AC8
Less saturated −25%#29559F

Channel breakdown

R16
G78
B184
Red16 (6.3%)
Green78 (30.6%)
Blue184 (72.2%)
Hue217.86°
Saturation (HSL)84%
Lightness39.22%
Dominant channelBlue
Hex per channelR 10 · G 4E · B B8

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Every value on this page was computed from “104eb8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.