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Recognised as Colour

#1D78CD

  • #1D78CD
  • Blue
  • Dark
  • Nearest: Cornflower blue

#1D78CD is a blue with RGB values 29, 120, 205 and HSL 209°, 75%, 46%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#1D78CD#1D78CD
HEX#1D78CD
RGBrgb(29, 120, 205)
RGB (0–1)0.1137, 0.4706, 0.8039
RGB percentages11.4%, 47.1%, 80.4%
HSLhsl(209, 75.2%, 45.9%)
HSV / HSBhsv(209, 85.9%, 80.4%)
CMYK85.9%, 41.5%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,931,469
CSS custom property--colour: #1D78CD;

Brightness & contrast

Relative luminance0.18102WCAG 2.x, 0 is black and 1 is white
Perceived brightness116.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.62:1
Contrast with white4.55:1WCAG normal text: AA
Contrast with black4.62:1WCAG normal text: AA
Greyscale equivalent#6B6B6B
Inverted#E28732

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4D7ED0no red cones; affects about 1% of men; ΔE 6.2 from the original
Deuteranopia#2E6FCBno green cones; the most common form, about 1% of men; ΔE 7.3 from the original
Tritanopia#008C98no blue cones; rare, and affects men and women equally; ΔE 48.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.55:1WCAG large text: AAA
Contrast with black, large text4.62:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 13Dodgerblue · ΔE 16.3Steel blue · ΔE 21.4Royal blue · ΔE 25.2Dark slateblue · ΔE 29.2Slate blue · ΔE 31.5
Nearest named CSS colourCornflower blue (#6495ED)ΔE 13, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CD721D
Analogous#1DCDCA, #1D20CD
Triadic#CD1D78, #78CD1D
Split complementary#CD1D20, #CDCA1D
Tetradic#CA1DCD, #CD721D, #20CD1D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C0DCF6
Lighter +30%#93C3F0
Lighter +20%#67AAE9
Lighter +10%#3A91E3
Darker −10%#175EA0
Darker −20%#104474
Darker −30%#0A2A47
Darker −40%#040F1A
More saturated +25%#0079EA
Less saturated −25%#3A77B0

Channel breakdown

R29
G120
B205
Red29 (11.4%)
Green120 (47.1%)
Blue205 (80.4%)
Hue208.98°
Saturation (HSL)75.21%
Lightness45.88%
Dominant channelBlue
Hex per channelR 1D · G 78 · B CD

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Every value on this page was computed from “1d78cd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.