Colour

#008ACC

#008ACC
Cyan
Dark
Nearest: Steel blue

#008ACC is a cyan with RGB values 0, 138, 204 and HSL 199°, 100%, 40%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#008ACC#008ACC

HEX#008ACC

RGBrgb(0, 138, 204)

RGB (0–1)0, 0.5412, 0.8

RGB percentages0%, 54.1%, 80%

HSLhsl(199.4, 100%, 40%)

HSV / HSBhsv(199.4, 100%, 80%)

CMYK100%, 32.4%, 0%, 20%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer35,532

CSS custom property--colour: #008ACC;

Brightness & contrast

Relative luminance0.22537WCAG 2.x, 0 is black and 1 is white

Perceived brightness126.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.51:1

Contrast with white3.81:1WCAG normal text: Fail

Contrast with black5.51:1WCAG normal text: AA

Greyscale equivalent#717171

Inverted#FF7533

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6A8BCFno red cones; affects about 1% of men; ΔE 15 from the original

Deuteranopia#507BCBno green cones; the most common form, about 1% of men; ΔE 17.3 from the original

Tritanopia#009BA2no blue cones; rare, and affects men and women equally; ΔE 38 from the original

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

Contrast with white, large text3.81:1WCAG large text: AA

Contrast with black, large text5.51:1WCAG large text: AAA

Named colours

Steel blue · ΔE 11 Cornflower blue · ΔE 19.1 Deep skyblue · ΔE 20.9 Dodgerblue · ΔE 27.2 Light skyblue · ΔE 29.1 Light slate grey · ΔE 31.9

Nearest named CSS colourSteel blue (#4682B4)ΔE 11.04, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CC4200

Analogous#00CCA8, #0024CC

Triadic#CC008A, #8ACC00

Split complementary#CC0024, #CCA800

Tetradic#A800CC, #CC4200, #24CC00

Tints, shades & saturation

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

Lighter +40%#99DEFF

Lighter +30%#66CDFF

Lighter +20%#33BDFF

Lighter +10%#00ACFF

Darker −10%#006799

Darker −20%#004566

Darker −30%#002233

Darker −40%#000000

More saturated +25%#008ACC

Less saturated −25%#1981B3

Channel breakdown

G138

B204

Red0 (0%)

Green138 (54.1%)

Blue204 (80%)

Hue199.41°

Saturation (HSL)100%

Lightness40%

Dominant channelBlue

Hex per channelR 00 · G 8A · B CC

Keep nerding

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

#008ACC

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

Nerdulate something else