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Recognised as Colour

#00427E

  • #00427E
  • Blue
  • Dark
  • Nearest: Dark slateblue

#00427E is a blue with RGB values 0, 66, 126 and HSL 209°, 100%, 25%. It is a dark colour, so white text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00427E#00427E
HEX#00427E
RGBrgb(0, 66, 126)
RGB (0–1)0, 0.2588, 0.4941
RGB percentages0%, 25.9%, 49.4%
HSLhsl(208.6, 100%, 24.7%)
HSV / HSBhsv(208.6, 100%, 49.4%)
CMYK100%, 47.6%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer17,022
CSS custom property--colour: #00427E;

Brightness & contrast

Relative luminance0.05403WCAG 2.x, 0 is black and 1 is white
Perceived brightness66.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.09:1
Contrast with white10.09:1WCAG normal text: AAA
Contrast with black2.08:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#FFBD81

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#204780no red cones; affects about 1% of men; ΔE 3.7 from the original
Deuteranopia#003D7Dno green cones; the most common form, about 1% of men; ΔE 4 from the original
Tritanopia#00515Ano blue cones; rare, and affects men and women equally; ΔE 37 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.09:1WCAG large text: AAA
Contrast with black, large text2.08:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 19.7Steel blue · ΔE 27.8Midnight blue · ΔE 29.6Cornflower blue · ΔE 35.7Rebecca purple · ΔE 37.3Royal blue · ΔE 38.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.68, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7E3C00
Analogous#007E7B, #00037E
Triadic#7E0042, #427E00
Split complementary#7E0003, #7E7B00
Tetradic#7B007E, #7E3C00, #037E00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4BA9FF
Lighter +30%#1891FF
Lighter +20%#0077E4
Lighter +10%#005DB1
Darker −10%#00274B
Darker −20%#000D18
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00427E
Less saturated −25%#10416E

Channel breakdown

R0
G66
B126
Red0 (0%)
Green66 (25.9%)
Blue126 (49.4%)
Hue208.57°
Saturation (HSL)100%
Lightness24.71%
Dominant channelBlue
Hex per channelR 00 · G 42 · B 7E

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Every value on this page was computed from “00427e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.