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Recognised as Colour

#427DC3

  • #427DC3
  • Blue
  • Dark
  • Nearest: Steel blue

#427DC3 is a blue with RGB values 66, 125, 195 and HSL 213°, 52%, 51%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#427DC3#427DC3
HEX#427DC3
RGBrgb(66, 125, 195)
RGB (0–1)0.2588, 0.4902, 0.7647
RGB percentages25.9%, 49%, 76.5%
HSLhsl(212.6, 51.8%, 51.2%)
HSV / HSBhsv(212.6, 66.2%, 76.5%)
CMYK66.2%, 35.9%, 0%, 23.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,357,571
CSS custom property--colour: #427DC3;

Brightness & contrast

Relative luminance0.19766WCAG 2.x, 0 is black and 1 is white
Perceived brightness121.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.95:1
Contrast with white4.24:1WCAG normal text: Fail
Contrast with black4.95:1WCAG normal text: AA
Greyscale equivalent#767676
Inverted#BD823C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5E82C6no red cones; affects about 1% of men; ΔE 5.5 from the original
Deuteranopia#4C75C2no green cones; the most common form, about 1% of men; ΔE 7 from the original
Tritanopia#008D97no blue cones; rare, and affects men and women equally; ΔE 41.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.24:1WCAG large text: AA
Contrast with black, large text4.95:1WCAG large text: AAA

Named colours

Steel blue · ΔE 12.5Cornflower blue · ΔE 13.9Dodgerblue · ΔE 23.5Deep skyblue · ΔE 29.6Dark slateblue · ΔE 30.8Light slate grey · ΔE 31.9
Nearest named CSS colourSteel blue (#4682B4)ΔE 12.46, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C38842
Analogous#42BEC3, #4842C3
Triadic#C3427D, #7DC342
Split complementary#C34742, #BEC342
Tetradic#C342BD, #C38842, #42C347

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DDE8F4
Lighter +30%#B6CDE8
Lighter +20%#8FB2DC
Lighter +10%#6998CF
Darker −10%#33649F
Darker −20%#264C79
Darker −30%#1A3452
Darker −40%#0E1B2B
More saturated +25%#237AE2
Less saturated −25%#6180A4

Channel breakdown

R66
G125
B195
Red66 (25.9%)
Green125 (49%)
Blue195 (76.5%)
Hue212.56°
Saturation (HSL)51.81%
Lightness51.18%
Dominant channelBlue
Hex per channelR 42 · G 7D · B C3

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Every value on this page was computed from “427dc3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.