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Colour

#407DBD

  • #407DBD
  • Blue
  • Dark
  • Nearest: Steel blue

#407DBD is a blue with RGB values 64, 125, 189 and HSL 211°, 49%, 50%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#407DBD#407DBD
HEX#407DBD
RGBrgb(64, 125, 189)
RGB (0–1)0.251, 0.4902, 0.7412
RGB percentages25.1%, 49%, 74.1%
HSLhsl(210.7, 49.4%, 49.6%)
HSV / HSBhsv(210.7, 66.1%, 74.1%)
CMYK66.1%, 33.9%, 0%, 25.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,226,493
CSS custom property--colour: #407DBD;

Brightness & contrast

Relative luminance0.19431WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.89:1
Contrast with white4.3:1WCAG normal text: Fail
Contrast with black4.89:1WCAG normal text: AA
Greyscale equivalent#757575
Inverted#BF8242

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6180C0no red cones; affects about 1% of men; ΔE 7 from the original
Deuteranopia#5075BCno green cones; the most common form, about 1% of men; ΔE 8 from the original
Tritanopia#008C94no blue cones; rare, and affects men and women equally; ΔE 39.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.3:1WCAG large text: AA
Contrast with black, large text4.89:1WCAG large text: AAA

Named colours

Steel blue · ΔE 8.8Cornflower blue · ΔE 16.9Dodgerblue · ΔE 26.9Deep skyblue · ΔE 28.4Light slate grey · ΔE 28.8Slate grey · ΔE 29
Nearest named CSS colourSteel blue (#4682B4)ΔE 8.81, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BD8040
Analogous#40BBBD, #4240BD
Triadic#BD407D, #7DBD40
Split complementary#BD4240, #BBBD40
Tetradic#BD40BB, #BD8040, #40BD42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D7E4F2
Lighter +30%#B1CAE5
Lighter +20%#8BB1D8
Lighter +10%#6597CB
Darker −10%#336497
Darker −20%#264B71
Darker −30%#19314B
Darker −40%#0C1825
More saturated +25%#207CDD
Less saturated −25%#607E9D

Channel breakdown

R64
G125
B189
Red64 (25.1%)
Green125 (49%)
Blue189 (74.1%)
Hue210.72°
Saturation (HSL)49.41%
Lightness49.61%
Dominant channelBlue
Hex per channelR 40 · G 7D · B BD

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Every value on this page was computed from “407dbd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.