Nerdulator> put something in

Recognised as Colour

#6683C3

  • #6683C3
  • Blue
  • Dark
  • Nearest: Steel blue

#6683C3 is a blue with RGB values 102, 131, 195 and HSL 221°, 44%, 58%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#6683C3#6683C3
HEX#6683C3
RGBrgb(102, 131, 195)
RGB (0–1)0.4, 0.5137, 0.7647
RGB percentages40%, 51.4%, 76.5%
HSLhsl(221.3, 43.7%, 58.2%)
HSV / HSBhsv(221.3, 47.7%, 76.5%)
CMYK47.7%, 32.8%, 0%, 23.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,718,403
CSS custom property--colour: #6683C3;

Brightness & contrast

Relative luminance0.22998WCAG 2.x, 0 is black and 1 is white
Perceived brightness132.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.6:1
Contrast with white3.75:1WCAG normal text: Fail
Contrast with black5.6:1WCAG normal text: AA
Greyscale equivalent#818181
Inverted#997C3C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6B88C6no red cones; affects about 1% of men; ΔE 2.3 from the original
Deuteranopia#6180C2no green cones; the most common form, about 1% of men; ΔE 1.8 from the original
Tritanopia#40919Ano blue cones; rare, and affects men and women equally; ΔE 37.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.75:1WCAG large text: AA
Contrast with black, large text5.6:1WCAG large text: AAA

Named colours

Steel blue · ΔE 12.4Cornflower blue · ΔE 14.6Light slate grey · ΔE 27.2Dodgerblue · ΔE 27.3Slate grey · ΔE 27.7Deep skyblue · ΔE 31
Nearest named CSS colourSteel blue (#4682B4)ΔE 12.41, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C3A666
Analogous#66B2C3, #7766C3
Triadic#C36683, #83C366
Split complementary#C37866, #B1C366
Tetradic#C366B2, #C3A666, #66C378

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F9FAFC
Lighter +30%#D4DCEE
Lighter +20%#AFBEE0
Lighter +10%#8BA1D1
Darker −10%#4567B1
Darker −20%#37518C
Darker −30%#293C67
Darker −40%#1A2743
More saturated +25%#4B79DE
Less saturated −25%#818DA8

Channel breakdown

R102
G131
B195
Red102 (40%)
Green131 (51.4%)
Blue195 (76.5%)
Hue221.29°
Saturation (HSL)43.66%
Lightness58.24%
Dominant channelBlue
Hex per channelR 66 · G 83 · B C3

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 “6683c3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.