Nerdulator> put something in

Colour

#6399FD

  • #6399FD
  • Blue
  • Dark
  • Nearest: Cornflower blue

#6399FD is a blue with RGB values 99, 153, 253 and HSL 219°, 97%, 69%. It is a dark colour, so black text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#6399FD#6399FD
HEX#6399FD
RGBrgb(99, 153, 253)
RGB (0–1)0.3882, 0.6, 0.9922
RGB percentages38.8%, 60%, 99.2%
HSLhsl(219, 97.5%, 69%)
HSV / HSBhsv(219, 60.9%, 99.2%)
CMYK60.9%, 39.5%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,527,485
CSS custom property--colour: #6399FD;

Brightness & contrast

Relative luminance0.32527WCAG 2.x, 0 is black and 1 is white
Perceived brightness154.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.51:1
Contrast with white2.8:1WCAG normal text: Fail
Contrast with black7.51:1WCAG normal text: AAA
Greyscale equivalent#959595
Inverted#9C6602

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6DA2FFno red cones; affects about 1% of men; ΔE 5.5 from the original
Deuteranopia#5794FBno green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#00B0BFno blue cones; rare, and affects men and women equally; ΔE 57.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.8:1WCAG large text: Fail
Contrast with black, large text7.51:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 6.7Dodgerblue · ΔE 9.6Royal blue · ΔE 23.7Medium purple · ΔE 26.8Steel blue · ΔE 30.2Slate blue · ΔE 30.4
Nearest named CSS colourCornflower blue (#6495ED)ΔE 6.69, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FDC763
Analogous#63E6FD, #7A63FD
Triadic#FD6399, #99FD63
Split complementary#FD7A63, #E6FD63
Tetradic#FD63E6, #FDC763, #63FD7A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FAFCFF
Lighter +20%#C8DBFE
Lighter +10%#95BAFE
Darker −10%#3178FC
Darker −20%#0359F7
Darker −30%#0347C4
Darker −40%#023492
More saturated +25%#6198FF
Less saturated −25%#779FE9

Channel breakdown

R99
G153
B253
Red99 (38.8%)
Green153 (60%)
Blue253 (99.2%)
Hue218.96°
Saturation (HSL)97.47%
Lightness69.02%
Dominant channelBlue
Hex per channelR 63 · G 99 · B FD

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 “6399fd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.