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Colour

#1B7CFF

  • #1B7CFF
  • Blue
  • Dark
  • Nearest: Royal blue

#1B7CFF is a blue with RGB values 27, 124, 255 and HSL 214°, 100%, 55%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#1B7CFF#1B7CFF
HEX#1B7CFF
RGBrgb(27, 124, 255)
RGB (0–1)0.1059, 0.4863, 1
RGB percentages10.6%, 48.6%, 100%
HSLhsl(214.5, 100%, 55.3%)
HSV / HSBhsv(214.5, 89.4%, 100%)
CMYK89.4%, 51.4%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,801,471
CSS custom property--colour: #1B7CFF;

Brightness & contrast

Relative luminance0.21868WCAG 2.x, 0 is black and 1 is white
Perceived brightness129.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.37:1
Contrast with white3.91:1WCAG normal text: Fail
Contrast with black5.37:1WCAG normal text: AA
Greyscale equivalent#717171
Inverted#E48300

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#188BFFno red cones; affects about 1% of men; ΔE 12.1 from the original
Deuteranopia#0077FCno green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#009CB2no blue cones; rare, and affects men and women equally; ΔE 70.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.91:1WCAG large text: AA
Contrast with black, large text5.37:1WCAG large text: AAA

Named colours

Royal blue · ΔE 10.1Dodgerblue · ΔE 16Medium slateblue · ΔE 20.2Slate blue · ΔE 21.8Medium purple · ΔE 26.6Cornflower blue · ΔE 27.5
Nearest named CSS colourRoyal blue (#4169E1)ΔE 10.14, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF9E1B
Analogous#1BEEFF, #2C1BFF
Triadic#FF1B7C, #7CFF1B
Split complementary#FF2C1B, #EEFF1B
Tetradic#FF1BEE, #FF9E1B, #1BFF2C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E7F1FF
Lighter +30%#B4D4FF
Lighter +20%#81B7FF
Lighter +10%#4E99FF
Darker −10%#0062E7
Darker −20%#004DB4
Darker −30%#003781
Darker −40%#00214E
More saturated +25%#1B7CFF
Less saturated −25%#3780E3

Channel breakdown

R27
G124
B255
Red27 (10.6%)
Green124 (48.6%)
Blue255 (100%)
Hue214.47°
Saturation (HSL)100%
Lightness55.29%
Dominant channelBlue
Hex per channelR 1B · G 7C · B FF

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Every value on this page was computed from “1b7cff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.