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Recognised as Colour

#689DAA

  • #689DAA
  • Cyan
  • Dark
  • Nearest: Cadetblue

#689DAA is a cyan with RGB values 104, 157, 170 and HSL 192°, 28%, 54%. It is a dark colour, so black text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Cadetblue.

Colour values

#689DAA#689DAA
HEX#689DAA
RGBrgb(104, 157, 170)
RGB (0–1)0.4078, 0.6157, 0.6667
RGB percentages40.8%, 61.6%, 66.7%
HSLhsl(191.8, 28%, 53.7%)
HSV / HSBhsv(191.8, 38.8%, 66.7%)
CMYK38.8%, 7.6%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,856,106
CSS custom property--colour: #689DAA;

Brightness & contrast

Relative luminance0.29959WCAG 2.x, 0 is black and 1 is white
Perceived brightness144.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.99:1
Contrast with white3:1WCAG normal text: Fail
Contrast with black6.99:1WCAG normal text: AA
Greyscale equivalent#939393
Inverted#976255

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9399ABno red cones; affects about 1% of men; ΔE 16 from the original
Deuteranopia#8991AAno green cones; the most common form, about 1% of men; ΔE 16.8 from the original
Tritanopia#4EA2A1no blue cones; rare, and affects men and women equally; ΔE 12.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3:1WCAG large text: AA
Contrast with black, large text6.99:1WCAG large text: AAA

Named colours

Cadetblue · ΔE 7.4Light slate grey · ΔE 13.2Slate grey · ΔE 15Dark cyan · ΔE 19.3Sky blue · ΔE 19.7Dark grey · ΔE 20.2
Nearest named CSS colourCadetblue (#5F9EA0)ΔE 7.43, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AA7568
Analogous#68AA96, #687CAA
Triadic#AA689D, #9DAA68
Split complementary#AA687C, #AA9668
Tetradic#9668AA, #AA7568, #7CAA68

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EBF2F3
Lighter +30%#CADDE1
Lighter +20%#A9C7CF
Lighter +10%#89B2BC
Darker −10%#50828F
Darker −20%#3E656E
Darker −30%#2C474D
Darker −40%#19292D
More saturated +25%#4AAFC8
Less saturated −25%#868B8D

Channel breakdown

R104
G157
B170
Red104 (40.8%)
Green157 (61.6%)
Blue170 (66.7%)
Hue191.82°
Saturation (HSL)27.97%
Lightness53.73%
Dominant channelBlue
Hex per channelR 68 · G 9D · B AA

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Every value on this page was computed from “689daa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.