Nerdulator> put something in

Recognised as Colour

#556ED0

  • #556ED0
  • Blue
  • Dark
  • Nearest: Royal blue

#556ED0 is a blue with RGB values 85, 110, 208 and HSL 228°, 57%, 57%. It is a dark colour, so white text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#556ED0#556ED0
HEX#556ED0
RGBrgb(85, 110, 208)
RGB (0–1)0.3333, 0.4314, 0.8157
RGB percentages33.3%, 43.1%, 81.6%
HSLhsl(227.8, 56.7%, 57.5%)
HSV / HSBhsv(227.8, 59.1%, 81.6%)
CMYK59.1%, 47.1%, 0%, 18.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,598,928
CSS custom property--colour: #556ED0;

Brightness & contrast

Relative luminance0.17637WCAG 2.x, 0 is black and 1 is white
Perceived brightness119.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.64:1
Contrast with white4.64:1WCAG normal text: AA
Contrast with black4.53:1WCAG normal text: AA
Greyscale equivalent#707070
Inverted#AA912F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3E7AD4no red cones; affects about 1% of men; ΔE 10.3 from the original
Deuteranopia#2B6FCEno green cones; the most common form, about 1% of men; ΔE 8 from the original
Tritanopia#008495no blue cones; rare, and affects men and women equally; ΔE 57 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.64:1WCAG large text: AAA
Contrast with black, large text4.53:1WCAG large text: AAA

Named colours

Royal blue · ΔE 13.1Slate blue · ΔE 16.6Cornflower blue · ΔE 17.5Dodgerblue · ΔE 17.7Medium purple · ΔE 17.7Dark slateblue · ΔE 22.3
Nearest named CSS colourRoyal blue (#4169E1)ΔE 13.1, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D0B755
Analogous#55ACD0, #7955D0
Triadic#D0556E, #6ED055
Split complementary#D07A55, #ABD055
Tetradic#D055AC, #D0B755, #55D07A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F5F6FC
Lighter +30%#CDD4F1
Lighter +20%#A5B2E6
Lighter +10%#7D90DB
Darker −10%#3450BE
Darker −20%#293F96
Darker −30%#1E2E6E
Darker −40%#131E46
More saturated +25%#3A5EEB
Less saturated −25%#707EB5

Channel breakdown

R85
G110
B208
Red85 (33.3%)
Green110 (43.1%)
Blue208 (81.6%)
Hue227.8°
Saturation (HSL)56.68%
Lightness57.45%
Dominant channelBlue
Hex per channelR 55 · G 6E · B D0

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 “556ed0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.