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Recognised as Colour

#0357FD

  • #0357FD
  • Blue
  • Dark
  • Nearest: Medium slateblue

#0357FD is a blue with RGB values 3, 87, 253 and HSL 220°, 98%, 50%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#0357FD#0357FD
HEX#0357FD
RGBrgb(3, 87, 253)
RGB (0–1)0.0118, 0.3412, 0.9922
RGB percentages1.2%, 34.1%, 99.2%
HSLhsl(219.8, 98.4%, 50.2%)
HSV / HSBhsv(219.8, 98.8%, 99.2%)
CMYK98.8%, 65.6%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer219,133
CSS custom property--colour: #0357FD;

Brightness & contrast

Relative luminance0.13928WCAG 2.x, 0 is black and 1 is white
Perceived brightness108.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.55:1
Contrast with white5.55:1WCAG normal text: AA
Contrast with black3.79:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#FCA802

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0073FFno red cones; affects about 1% of men; ΔE 21.2 from the original
Deuteranopia#005EFAno green cones; the most common form, about 1% of men; ΔE 6.9 from the original
Tritanopia#0085A3no blue cones; rare, and affects men and women equally; ΔE 89.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.55:1WCAG large text: AAA
Contrast with black, large text3.79:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 23.3Royal blue · ΔE 28.3Blue violet · ΔE 28.8Slate blue · ΔE 30.4Medium blue · ΔE 30.4Dark orchid · ΔE 34.4
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 23.32, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FDA903
Analogous#03D4FD, #2C03FD
Triadic#FD0357, #57FD03
Split complementary#FD2C03, #D4FD03
Tetradic#FD03D4, #FDA903, #03FD2C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CDDEFF
Lighter +30%#9BBCFE
Lighter +20%#689AFE
Lighter +10%#3679FD
Darker −10%#0245CB
Darker −20%#013499
Darker −30%#012366
Darker −40%#001234
More saturated +25%#0156FF
Less saturated −25%#2361DD

Channel breakdown

R3
G87
B253
Red3 (1.2%)
Green87 (34.1%)
Blue253 (99.2%)
Hue219.84°
Saturation (HSL)98.43%
Lightness50.2%
Dominant channelBlue
Hex per channelR 03 · G 57 · B FD

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Every value on this page was computed from “0357fd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.