Colour

#31ACFB

#31ACFB
Blue
Dark
Nearest: Deep skyblue

#31ACFB is a blue with RGB values 49, 172, 251 and HSL 203°, 96%, 59%. It is a dark colour, so black text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#31ACFB#31ACFB

HEX#31ACFB

RGBrgb(49, 172, 251)

RGB (0–1)0.1922, 0.6745, 0.9843

RGB percentages19.2%, 67.5%, 98.4%

HSLhsl(203.5, 96.2%, 58.8%)

HSV / HSBhsv(203.5, 80.5%, 98.4%)

CMYK80.5%, 31.5%, 0%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,255,547

CSS custom property--colour: #31ACFB;

Brightness & contrast

Relative luminance0.37123WCAG 2.x, 0 is black and 1 is white

Perceived brightness159 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 8.42:1

Contrast with white2.49:1WCAG normal text: Fail

Contrast with black8.42:1WCAG normal text: AAA

Greyscale equivalent#989898

Inverted#CE5304

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#87AEFEno red cones; affects about 1% of men; ΔE 15.4 from the original

Deuteranopia#6B9CFAno green cones; the most common form, about 1% of men; ΔE 17.7 from the original

Tritanopia#00BFC8no blue cones; rare, and affects men and women equally; ΔE 44.1 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text2.49:1WCAG large text: Fail

Contrast with black, large text8.42:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 13.7 Cornflower blue · ΔE 16.7 Steel blue · ΔE 22.2 Dodgerblue · ΔE 23.5 Light skyblue · ΔE 23.9 Sky blue · ΔE 30.8

Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 13.73, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#FB8031

Analogous#31FBE5, #3147FB

Triadic#FB31AC, #ACFB31

Split complementary#FB3147, #FBE531

Tetradic#E531FB, #FB8031, #47FB31

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#F9FDFF

Lighter +30%#C7E8FE

Lighter +20%#95D4FD

Lighter +10%#63C0FC

Darker −10%#0597F4

Darker −20%#0478C2

Darker −30%#035990

Darker −40%#023A5E

More saturated +25%#2DADFF

Less saturated −25%#4BA6E1

Channel breakdown

R49

G172

B251

Red49 (19.2%)

Green172 (67.5%)

Blue251 (98.4%)

Hue203.47°

Saturation (HSL)96.19%

Lightness58.82%

Dominant channelBlue

Hex per channelR 31 · G AC · B FB

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#31ACFB

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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