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Colour

#004DEF

  • #004DEF
  • Blue
  • Dark
  • Nearest: Medium slateblue

#004DEF is a blue with RGB values 0, 77, 239 and HSL 221°, 100%, 47%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#004DEF#004DEF
HEX#004DEF
RGBrgb(0, 77, 239)
RGB (0–1)0, 0.302, 0.9373
RGB percentages0%, 30.2%, 93.7%
HSLhsl(220.7, 100%, 46.9%)
HSV / HSBhsv(220.7, 100%, 93.7%)
CMYK100%, 67.8%, 0%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer19,951
CSS custom property--colour: #004DEF;

Brightness & contrast

Relative luminance0.1154WCAG 2.x, 0 is black and 1 is white
Perceived brightness100 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.35:1
Contrast with white6.35:1WCAG normal text: AA
Contrast with black3.31:1WCAG normal text: Fail
Greyscale equivalent#484848
Inverted#FFB210

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006AF4no red cones; affects about 1% of men; ΔE 20.5 from the original
Deuteranopia#0055ECno green cones; the most common form, about 1% of men; ΔE 7.7 from the original
Tritanopia#007B98no blue cones; rare, and affects men and women equally; ΔE 88.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.35:1WCAG large text: AAA
Contrast with black, large text3.31:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 23.4Blue violet · ΔE 27.1Medium blue · ΔE 27.8Royal blue · ΔE 28.3Slate blue · ΔE 29.3Dark blue · ΔE 31.1
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 23.38, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EFA200
Analogous#00C5EF, #2A00EF
Triadic#EF004D, #4DEF00
Split complementary#EF2A00, #C5EF00
Tetradic#EF00C5, #EFA200, #00EF2A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCD2FF
Lighter +30%#89AFFF
Lighter +20%#568CFF
Lighter +10%#236AFF
Darker −10%#003DBC
Darker −20%#002C89
Darker −30%#001C56
Darker −40%#000B23
More saturated +25%#004DEF
Less saturated −25%#1E58D1

Channel breakdown

R0
G77
B239
Red0 (0%)
Green77 (30.2%)
Blue239 (93.7%)
Hue220.67°
Saturation (HSL)100%
Lightness46.86%
Dominant channelBlue
Hex per channelR 00 · G 4D · B EF

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Every value on this page was computed from “004def” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.