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Recognised as Colour

#0155FD

  • #0155FD
  • Blue
  • Dark
  • Nearest: Medium slateblue

#0155FD is a blue with RGB values 1, 85, 253 and HSL 220°, 99%, 50%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#0155FD#0155FD
HEX#0155FD
RGBrgb(1, 85, 253)
RGB (0–1)0.0039, 0.3333, 0.9922
RGB percentages0.4%, 33.3%, 99.2%
HSLhsl(220, 99.2%, 49.8%)
HSV / HSBhsv(220, 99.6%, 99.2%)
CMYK99.6%, 66.4%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer87,549
CSS custom property--colour: #0155FD;

Brightness & contrast

Relative luminance0.13595WCAG 2.x, 0 is black and 1 is white
Perceived brightness107.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.65:1
Contrast with white5.65:1WCAG normal text: AA
Contrast with black3.72:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#FEAA02

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0072FFno red cones; affects about 1% of men; ΔE 21.9 from the original
Deuteranopia#005CFAno green cones; the most common form, about 1% of men; ΔE 6.9 from the original
Tritanopia#0084A2no blue cones; rare, and affects men and women equally; ΔE 90.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.65:1WCAG large text: AAA
Contrast with black, large text3.72:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 24.4Blue violet · ΔE 28Medium blue · ΔE 29.1Royal blue · ΔE 29.7Slate blue · ΔE 31.5Dark orchid · ΔE 34.3
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 24.39, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FDA901
Analogous#01D3FD, #2B01FD
Triadic#FD0155, #55FD01
Split complementary#FD2B01, #D3FD01
Tetradic#FD01D3, #FDA901, #01FD2B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CBDCFF
Lighter +30%#98BAFF
Lighter +20%#6699FE
Lighter +10%#3377FE
Darker −10%#0144CA
Darker −20%#013397
Darker −30%#002265
Darker −40%#001132
More saturated +25%#0055FE
Less saturated −25%#2160DD

Channel breakdown

R1
G85
B253
Red1 (0.4%)
Green85 (33.3%)
Blue253 (99.2%)
Hue220°
Saturation (HSL)99.21%
Lightness49.8%
Dominant channelBlue
Hex per channelR 01 · G 55 · B FD

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Every value on this page was computed from “0155fd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.