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Colour

#1500FF

  • #1500FF
  • Blue
  • Dark
  • Nearest: Blue

#1500FF is a blue with RGB values 21, 0, 255 and HSL 245°, 100%, 50%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Blue.

Colour values

#1500FF#1500FF
HEX#1500FF
RGBrgb(21, 0, 255)
RGB (0–1)0.0824, 0, 1
RGB percentages8.2%, 0%, 100%
HSLhsl(244.9, 100%, 50%)
HSV / HSBhsv(244.9, 100%, 100%)
CMYK91.8%, 100%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,376,511
CSS custom property--colour: #1500FF;

Brightness & contrast

Relative luminance0.07379WCAG 2.x, 0 is black and 1 is white
Perceived brightness86.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.48:1
Contrast with white8.48:1WCAG normal text: AAA
Contrast with black2.48:1WCAG normal text: Fail
Greyscale equivalent#171717
Inverted#EAFF00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0059FFno red cones; affects about 1% of men; ΔE 42.9 from the original
Deuteranopia#003FFBno green cones; the most common form, about 1% of men; ΔE 26 from the original
Tritanopia#006B96no blue cones; rare, and affects men and women equally; ΔE 117.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.48:1WCAG large text: AAA
Contrast with black, large text2.48:1WCAG large text: Fail

Named colours

Blue · ΔE 0.7Medium blue · ΔE 21.3Blue violet · ΔE 35.2Dark violet · ΔE 37.7Dark orchid · ΔE 50.4Dark blue · ΔE 51.4
Nearest named CSS colourBlue (#0000FF)ΔE 0.7, indistinguishable to the eye
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EAFF00
Analogous#006AFF, #9500FF
Triadic#FF1500, #00FF15
Split complementary#FF9400, #6BFF00
Tetradic#FF006A, #EAFF00, #00FF95

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D0CCFF
Lighter +30%#A199FF
Lighter +20%#7366FF
Lighter +10%#4433FF
Darker −10%#1100CC
Darker −20%#0D0099
Darker −30%#080066
Darker −40%#040033
More saturated +25%#1500FF
Less saturated −25%#3020DF

Channel breakdown

R21
G0
B255
Red21 (8.2%)
Green0 (0%)
Blue255 (100%)
Hue244.94°
Saturation (HSL)100%
Lightness50%
Dominant channelBlue
Hex per channelR 15 · G 00 · B FF

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Every value on this page was computed from “1500ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.