Nerdulator> put something in

Recognised as Colour

#688CE4

  • #688CE4
  • Blue
  • Dark
  • Nearest: Cornflower blue

#688CE4 is a blue with RGB values 104, 140, 228 and HSL 223°, 70%, 65%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#688CE4#688CE4
HEX#688CE4
RGBrgb(104, 140, 228)
RGB (0–1)0.4078, 0.549, 0.8941
RGB percentages40.8%, 54.9%, 89.4%
HSLhsl(222.6, 69.7%, 65.1%)
HSV / HSBhsv(222.6, 54.4%, 89.4%)
CMYK54.4%, 38.6%, 0%, 10.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,851,812
CSS custom property--colour: #688CE4;

Brightness & contrast

Relative luminance0.27301WCAG 2.x, 0 is black and 1 is white
Perceived brightness143.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.46:1
Contrast with white3.25:1WCAG normal text: Fail
Contrast with black6.46:1WCAG normal text: AA
Greyscale equivalent#8B8B8B
Inverted#97731B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6895E7no red cones; affects about 1% of men; ΔE 5.6 from the original
Deuteranopia#5989E2no green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#219FADno blue cones; rare, and affects men and women equally; ΔE 51.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.25:1WCAG large text: AA
Contrast with black, large text6.46:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 4.3Dodgerblue · ΔE 15.1Steel blue · ΔE 24.3Royal blue · ΔE 24.4Medium purple · ΔE 24.6Slate blue · ΔE 28.8
Nearest named CSS colourCornflower blue (#6495ED)ΔE 4.28, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E4C068
Analogous#68CAE4, #8268E4
Triadic#E4688C, #8CE468
Split complementary#E48268, #CAE468
Tetradic#E468CA, #E4C068, #68E482

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EAEFFB
Lighter +20%#BFCEF3
Lighter +10%#93ADEC
Darker −10%#3D6BDC
Darker −20%#2351C3
Darker −30%#1B3F98
Darker −40%#132D6D
More saturated +25%#5283FA
Less saturated −25%#7E95CE

Channel breakdown

R104
G140
B228
Red104 (40.8%)
Green140 (54.9%)
Blue228 (89.4%)
Hue222.58°
Saturation (HSL)69.66%
Lightness65.1%
Dominant channelBlue
Hex per channelR 68 · G 8C · B E4

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 “688ce4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.