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Recognised as Colour

#058CB3

  • #058CB3
  • Cyan
  • Dark
  • Nearest: Steel blue

#058CB3 is a cyan with RGB values 5, 140, 179 and HSL 193°, 95%, 36%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#058CB3#058CB3
HEX#058CB3
RGBrgb(5, 140, 179)
RGB (0–1)0.0196, 0.549, 0.702
RGB percentages2%, 54.9%, 70.2%
HSLhsl(193.4, 94.6%, 36.1%)
HSV / HSBhsv(193.4, 97.2%, 70.2%)
CMYK97.2%, 21.8%, 0%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer363,699
CSS custom property--colour: #058CB3;

Brightness & contrast

Relative luminance0.22043WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.41:1
Contrast with white3.88:1WCAG normal text: Fail
Contrast with black5.41:1WCAG normal text: AA
Greyscale equivalent#727272
Inverted#FA734C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7789B5no red cones; affects about 1% of men; ΔE 22.1 from the original
Deuteranopia#637BB3no green cones; the most common form, about 1% of men; ΔE 23.9 from the original
Tritanopia#009799no blue cones; rare, and affects men and women equally; ΔE 23.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.88:1WCAG large text: AA
Contrast with black, large text5.41:1WCAG large text: AAA

Named colours

Steel blue · ΔE 13.5Deep skyblue · ΔE 22.8Cadetblue · ΔE 23.1Light slate grey · ΔE 23.5Slate grey · ΔE 24Dark cyan · ΔE 24.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 13.53, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B32C05
Analogous#05B383, #0535B3
Triadic#B3058C, #8CB305
Split complementary#B30535, #B38305
Tetradic#8305B3, #B32C05, #35B305

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#88E2FC
Lighter +30%#57D6FA
Lighter +20%#25C9F9
Lighter +10%#06B3E5
Darker −10%#046581
Darker −20%#023E50
Darker −30%#01181E
Darker −40%#000000
More saturated +25%#008FB8
Less saturated −25%#1C7F9C

Channel breakdown

R5
G140
B179
Red5 (2%)
Green140 (54.9%)
Blue179 (70.2%)
Hue193.45°
Saturation (HSL)94.57%
Lightness36.08%
Dominant channelBlue
Hex per channelR 05 · G 8C · B B3

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Every value on this page was computed from “058cb3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.