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Recognised as Colour

#667FFE

  • #667FFE
  • Blue
  • Dark
  • Nearest: Royal blue

#667FFE is a blue with RGB values 102, 127, 254 and HSL 230°, 99%, 70%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#667FFE#667FFE
HEX#667FFE
RGBrgb(102, 127, 254)
RGB (0–1)0.4, 0.498, 0.9961
RGB percentages40%, 49.8%, 99.6%
HSLhsl(230.1, 98.7%, 69.8%)
HSV / HSBhsv(230.1, 59.8%, 99.6%)
CMYK59.8%, 50%, 0%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,717,438
CSS custom property--colour: #667FFE;

Brightness & contrast

Relative luminance0.25159WCAG 2.x, 0 is black and 1 is white
Perceived brightness141.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.03:1
Contrast with white3.48:1WCAG normal text: Fail
Contrast with black6.03:1WCAG normal text: AA
Greyscale equivalent#838383
Inverted#998001

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3990FFno red cones; affects about 1% of men; ΔE 16.9 from the original
Deuteranopia#1183FBno green cones; the most common form, about 1% of men; ΔE 12.8 from the original
Tritanopia#009CB3no blue cones; rare, and affects men and women equally; ΔE 70.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.48:1WCAG large text: AA
Contrast with black, large text6.03:1WCAG large text: AAA

Named colours

Royal blue · ΔE 9.7Medium slateblue · ΔE 13.7Slate blue · ΔE 16.5Medium purple · ΔE 18.3Dodgerblue · ΔE 18.7Cornflower blue · ΔE 25.9
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.67, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FEE566
Analogous#66CBFE, #9966FE
Triadic#FE667F, #7FFE66
Split complementary#FE9966, #CBFE66
Tetradic#FE66CB, #FEE566, #66FE99

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FEFEFF
Lighter +20%#CBD4FF
Lighter +10%#99A9FE
Darker −10%#3355FE
Darker −20%#022BFC
Darker −30%#0122CA
Darker −40%#011A97
More saturated +25%#657EFF
Less saturated −25%#798CEB

Channel breakdown

R102
G127
B254
Red102 (40%)
Green127 (49.8%)
Blue254 (99.6%)
Hue230.13°
Saturation (HSL)98.7%
Lightness69.8%
Dominant channelBlue
Hex per channelR 66 · G 7F · B FE

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Every value on this page was computed from “667ffe” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.