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Recognised as Colour

#057DB8

  • #057DB8
  • Cyan
  • Dark
  • Nearest: Steel blue

#057DB8 is a cyan with RGB values 5, 125, 184 and HSL 200°, 95%, 37%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#057DB8#057DB8
HEX#057DB8
RGBrgb(5, 125, 184)
RGB (0–1)0.0196, 0.4902, 0.7216
RGB percentages2%, 49%, 72.2%
HSLhsl(199.8, 94.7%, 37.1%)
HSV / HSBhsv(199.8, 97.3%, 72.2%)
CMYK97.3%, 32.1%, 0%, 27.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer359,864
CSS custom property--colour: #057DB8;

Brightness & contrast

Relative luminance0.1816WCAG 2.x, 0 is black and 1 is white
Perceived brightness114.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.63:1
Contrast with white4.53:1WCAG normal text: AA
Contrast with black4.63:1WCAG normal text: AA
Greyscale equivalent#686868
Inverted#FA8247

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#607EBBno red cones; affects about 1% of men; ΔE 14 from the original
Deuteranopia#4A70B7no green cones; the most common form, about 1% of men; ΔE 15.8 from the original
Tritanopia#008C92no blue cones; rare, and affects men and women equally; ΔE 34.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.53:1WCAG large text: AAA
Contrast with black, large text4.63:1WCAG large text: AAA

Named colours

Steel blue · ΔE 7.8Cornflower blue · ΔE 22.7Deep skyblue · ΔE 25.6Light slate grey · ΔE 28.9Slate grey · ΔE 28.9Dodgerblue · ΔE 31.2
Nearest named CSS colourSteel blue (#4682B4)ΔE 7.81, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B84005
Analogous#05B89A, #0523B8
Triadic#B8057D, #7DB805
Split complementary#B80523, #B89905
Tetradic#9A05B8, #B84005, #24B805

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8DD7FC
Lighter +30%#5BC6FB
Lighter +20%#2AB5F9
Lighter +10%#069FEA
Darker −10%#045B86
Darker −20%#023A55
Darker −30%#011823
Darker −40%#000000
More saturated +25%#007FBD
Less saturated −25%#1D75A0

Channel breakdown

R5
G125
B184
Red5 (2%)
Green125 (49%)
Blue184 (72.2%)
Hue199.78°
Saturation (HSL)94.71%
Lightness37.06%
Dominant channelBlue
Hex per channelR 05 · G 7D · B B8

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Every value on this page was computed from “057db8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.