Nerdulator> put something in

Recognised as Colour

#687FFE

  • #687FFE
  • Blue
  • Dark
  • Nearest: Royal blue

#687FFE is a blue with RGB values 104, 127, 254 and HSL 231°, 99%, 70%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#687FFE#687FFE
HEX#687FFE
RGBrgb(104, 127, 254)
RGB (0–1)0.4078, 0.498, 0.9961
RGB percentages40.8%, 49.8%, 99.6%
HSLhsl(230.8, 98.7%, 70.2%)
HSV / HSBhsv(230.8, 59.1%, 99.6%)
CMYK59.1%, 50%, 0%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,848,510
CSS custom property--colour: #687FFE;

Brightness & contrast

Relative luminance0.25278WCAG 2.x, 0 is black and 1 is white
Perceived brightness141.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.06:1
Contrast with white3.47:1WCAG normal text: Fail
Contrast with black6.06:1WCAG normal text: AA
Greyscale equivalent#838383
Inverted#978001

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3991FFno red cones; affects about 1% of men; ΔE 17.9 from the original
Deuteranopia#1583FBno green cones; the most common form, about 1% of men; ΔE 13 from the original
Tritanopia#009CB3no blue cones; rare, and affects men and women equally; ΔE 70.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.47:1WCAG large text: AA
Contrast with black, large text6.06:1WCAG large text: AAA

Named colours

Royal blue · ΔE 9.8Medium slateblue · ΔE 13.4Slate blue · ΔE 16.3Medium purple · ΔE 18Dodgerblue · ΔE 19Cornflower blue · ΔE 26
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.85, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FEE768
Analogous#68CAFE, #9C68FE
Triadic#FE687F, #7FFE68
Split complementary#FE9C68, #CAFE68
Tetradic#FE68CA, #FEE768, #68FE9C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#CDD5FF
Lighter +10%#9BAAFE
Darker −10%#3554FE
Darker −20%#0329FD
Darker −30%#0120CC
Darker −40%#011899
More saturated +25%#677EFF
Less saturated −25%#7B8CEB

Channel breakdown

R104
G127
B254
Red104 (40.8%)
Green127 (49.8%)
Blue254 (99.6%)
Hue230.8°
Saturation (HSL)98.68%
Lightness70.2%
Dominant channelBlue
Hex per channelR 68 · G 7F · B FE

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 “687ffe” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.