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Recognised as Colour

#387DCB

  • #387DCB
  • Blue
  • Dark
  • Nearest: Cornflower blue

#387DCB is a blue with RGB values 56, 125, 203 and HSL 212°, 59%, 51%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#387DCB#387DCB
HEX#387DCB
RGBrgb(56, 125, 203)
RGB (0–1)0.2196, 0.4902, 0.7961
RGB percentages22%, 49%, 79.6%
HSLhsl(211.8, 58.6%, 50.8%)
HSV / HSBhsv(211.8, 72.4%, 79.6%)
CMYK72.4%, 38.4%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,702,219
CSS custom property--colour: #387DCB;

Brightness & contrast

Relative luminance0.1982WCAG 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 4.96:1
Contrast with white4.23:1WCAG normal text: Fail
Contrast with black4.96:1WCAG normal text: AA
Greyscale equivalent#747474
Inverted#C78234

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5982CEno red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#4275C9no green cones; the most common form, about 1% of men; ΔE 6.4 from the original
Tritanopia#008F9Ano blue cones; rare, and affects men and women equally; ΔE 45.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.23:1WCAG large text: AA
Contrast with black, large text4.96:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11.6Steel blue · ΔE 16.9Dodgerblue · ΔE 19.2Royal blue · ΔE 28.8Dark slateblue · ΔE 30.2Deep skyblue · ΔE 30.8
Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.63, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CB8638
Analogous#38C6CB, #3D38CB
Triadic#CB387D, #7DCB38
Split complementary#CB3D38, #C6CB38
Tetradic#CB38C6, #CB8638, #38CB3D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DAE7F5
Lighter +30%#B1CCEB
Lighter +20%#89B2E0
Lighter +10%#6097D6
Darker −10%#2B64A5
Darker −20%#214C7C
Darker −30%#163354
Darker −40%#0B1B2C
More saturated +25%#197BEA
Less saturated −25%#577FAC

Channel breakdown

R56
G125
B203
Red56 (22%)
Green125 (49%)
Blue203 (79.6%)
Hue211.84°
Saturation (HSL)58.57%
Lightness50.78%
Dominant channelBlue
Hex per channelR 38 · G 7D · B CB

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Every value on this page was computed from “387dcb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.