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Recognised as Colour

#2663DE

  • #2663DE
  • Blue
  • Dark
  • Nearest: Royal blue

#2663DE is a blue with RGB values 38, 99, 222 and HSL 220°, 74%, 51%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#2663DE#2663DE
HEX#2663DE
RGBrgb(38, 99, 222)
RGB (0–1)0.149, 0.3882, 0.8706
RGB percentages14.9%, 38.8%, 87.1%
HSLhsl(220.1, 73.6%, 51%)
HSV / HSBhsv(220.1, 82.9%, 87.1%)
CMYK82.9%, 55.4%, 0%, 12.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,515,934
CSS custom property--colour: #2663DE;

Brightness & contrast

Relative luminance0.1461WCAG 2.x, 0 is black and 1 is white
Perceived brightness108.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.35:1
Contrast with white5.35:1WCAG normal text: AA
Contrast with black3.92:1WCAG normal text: Fail
Greyscale equivalent#5F5F5F
Inverted#D99C21

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0073E2no red cones; affects about 1% of men; ΔE 12.1 from the original
Deuteranopia#0063DCno green cones; the most common form, about 1% of men; ΔE 2.6 from the original
Tritanopia#008297no blue cones; rare, and affects men and women equally; ΔE 68.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.35:1WCAG large text: AAA
Contrast with black, large text3.92:1WCAG large text: AA

Named colours

Royal blue · ΔE 3.9Slate blue · ΔE 14.3Medium slateblue · ΔE 16.7Dodgerblue · ΔE 22.1Medium purple · ΔE 23.1Rebecca purple · ΔE 29.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 3.91, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DEA126
Analogous#26BFDE, #4526DE
Triadic#DE2663, #63DE26
Split complementary#DE4526, #BFDE26
Tetradic#DE26BF, #DEA126, #26DE45

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D7E2F9
Lighter +30%#ABC2F2
Lighter +20%#7FA3EB
Lighter +10%#5283E5
Darker −10%#1C4FB5
Darker −20%#153B89
Darker −30%#0E285D
Darker −40%#071531
More saturated +25%#0758FD
Less saturated −25%#456EBF

Channel breakdown

R38
G99
B222
Red38 (14.9%)
Green99 (38.8%)
Blue222 (87.1%)
Hue220.11°
Saturation (HSL)73.6%
Lightness50.98%
Dominant channelBlue
Hex per channelR 26 · G 63 · B DE

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Every value on this page was computed from “2663de” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.