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Colour

#1D5ECD

  • #1D5ECD
  • Blue
  • Dark
  • Nearest: Royal blue

#1D5ECD is a blue with RGB values 29, 94, 205 and HSL 218°, 75%, 46%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#1D5ECD#1D5ECD
HEX#1D5ECD
RGBrgb(29, 94, 205)
RGB (0–1)0.1137, 0.3686, 0.8039
RGB percentages11.4%, 36.9%, 80.4%
HSLhsl(217.8, 75.2%, 45.9%)
HSV / HSBhsv(217.8, 85.9%, 80.4%)
CMYK85.9%, 54.1%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,924,813
CSS custom property--colour: #1D5ECD;

Brightness & contrast

Relative luminance0.12674WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.94:1
Contrast with white5.94:1WCAG normal text: AA
Contrast with black3.53:1WCAG normal text: Fail
Greyscale equivalent#585858
Inverted#E2A132

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006CD1no red cones; affects about 1% of men; ΔE 10.3 from the original
Deuteranopia#005CCBno green cones; the most common form, about 1% of men; ΔE 1.5 from the original
Tritanopia#007A8Cno blue cones; rare, and affects men and women equally; ΔE 63.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.94:1WCAG large text: AAA
Contrast with black, large text3.53:1WCAG large text: AA

Named colours

Royal blue · ΔE 7.3Slate blue · ΔE 15.1Dodgerblue · ΔE 21Medium slateblue · ΔE 21.5Medium purple · ΔE 23.2Dark slateblue · ΔE 24.1
Nearest named CSS colourRoyal blue (#4169E1)ΔE 7.29, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CD8C1D
Analogous#1DB6CD, #341DCD
Triadic#CD1D5E, #5ECD1D
Split complementary#CD341D, #B6CD1D
Tetradic#CD1DB6, #CD8C1D, #1DCD34

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C0D4F6
Lighter +30%#93B5F0
Lighter +20%#6797E9
Lighter +10%#3A78E3
Darker −10%#174AA0
Darker −20%#103574
Darker −30%#0A2147
Darker −40%#040C1A
More saturated +25%#0056EA
Less saturated −25%#3A66B0

Channel breakdown

R29
G94
B205
Red29 (11.4%)
Green94 (36.9%)
Blue205 (80.4%)
Hue217.84°
Saturation (HSL)75.21%
Lightness45.88%
Dominant channelBlue
Hex per channelR 1D · G 5E · B CD

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Every value on this page was computed from “1d5ecd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.