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Recognised as Colour

#635ECA

  • #635ECA
  • Blue
  • Dark
  • Nearest: Slate blue

#635ECA is a blue with RGB values 99, 94, 202 and HSL 243°, 50%, 58%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#635ECA#635ECA
HEX#635ECA
RGBrgb(99, 94, 202)
RGB (0–1)0.3882, 0.3686, 0.7922
RGB percentages38.8%, 36.9%, 79.2%
HSLhsl(242.8, 50.5%, 58%)
HSV / HSBhsv(242.8, 53.5%, 79.2%)
CMYK51%, 53.5%, 0%, 20.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,512,330
CSS custom property--colour: #635ECA;

Brightness & contrast

Relative luminance0.14922WCAG 2.x, 0 is black and 1 is white
Perceived brightness113 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.27:1
Contrast with white5.27:1WCAG normal text: AA
Contrast with black3.98:1WCAG normal text: Fail
Greyscale equivalent#676767
Inverted#9CA135

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2270CEno red cones; affects about 1% of men; ΔE 20 from the original
Deuteranopia#1568C8no green cones; the most common form, about 1% of men; ΔE 18.1 from the original
Tritanopia#3A768Bno blue cones; rare, and affects men and women equally; ΔE 58.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.27:1WCAG large text: AAA
Contrast with black, large text3.98:1WCAG large text: AA

Named colours

Slate blue · ΔE 5.2Royal blue · ΔE 11Medium purple · ΔE 12.4Medium slateblue · ΔE 15.3Rebecca purple · ΔE 19.2Dark slateblue · ΔE 20.7
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 5.21, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C5CA5E
Analogous#5E8FCA, #995ECA
Triadic#CA635E, #5ECA63
Split complementary#CA995E, #8FCA5E
Tetradic#CA5E8F, #C5CA5E, #5ECA99

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F8F7FD
Lighter +30%#D3D1F0
Lighter +20%#ADABE3
Lighter +10%#8884D7
Darker −10%#423DB8
Darker −20%#353092
Darker −30%#27236C
Darker −40%#191745
More saturated +25%#4B43E5
Less saturated −25%#7B79AF

Channel breakdown

R99
G94
B202
Red99 (38.8%)
Green94 (36.9%)
Blue202 (79.2%)
Hue242.78°
Saturation (HSL)50.47%
Lightness58.04%
Dominant channelBlue
Hex per channelR 63 · G 5E · B CA

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Every value on this page was computed from “635eca” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.