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Colour

#308DAD

  • #308DAD
  • Cyan
  • Dark
  • Nearest: Steel blue

#308DAD is a cyan with RGB values 48, 141, 173 and HSL 195°, 57%, 43%. 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

#308DAD#308DAD
HEX#308DAD
RGBrgb(48, 141, 173)
RGB (0–1)0.1882, 0.5529, 0.6784
RGB percentages18.8%, 55.3%, 67.8%
HSLhsl(195.4, 56.6%, 43.3%)
HSV / HSBhsv(195.4, 72.3%, 67.8%)
CMYK72.3%, 18.5%, 0%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,181,997
CSS custom property--colour: #308DAD;

Brightness & contrast

Relative luminance0.22695WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.54:1
Contrast with white3.79:1WCAG normal text: Fail
Contrast with black5.54:1WCAG normal text: AA
Greyscale equivalent#7C7C7C
Inverted#CF7252

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7B8AAFno red cones; affects about 1% of men; ΔE 20.2 from the original
Deuteranopia#6A7EADno green cones; the most common form, about 1% of men; ΔE 21.4 from the original
Tritanopia#009797no blue cones; rare, and affects men and women equally; ΔE 22.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.79:1WCAG large text: AA
Contrast with black, large text5.54:1WCAG large text: AAA

Named colours

Steel blue · ΔE 14.6Cadetblue · ΔE 18.7Light slate grey · ΔE 19.6Slate grey · ΔE 20.1Dark cyan · ΔE 21.4Teal · ΔE 21.5
Nearest named CSS colourSteel blue (#4682B4)ΔE 14.57, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AD5030
Analogous#30AD8F, #304EAD
Triadic#AD308D, #8DAD30
Split complementary#AD304E, #AD8F30
Tetradic#8F30AD, #AD5030, #4EAD30

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCE0ED
Lighter +30%#95CEE1
Lighter +20%#6DBBD6
Lighter +10%#45A9CB
Darker −10%#256C85
Darker −20%#1A4C5D
Darker −30%#0F2B35
Darker −40%#040B0D
More saturated +25%#149AC9
Less saturated −25%#4C8091

Channel breakdown

R48
G141
B173
Red48 (18.8%)
Green141 (55.3%)
Blue173 (67.8%)
Hue195.36°
Saturation (HSL)56.56%
Lightness43.33%
Dominant channelBlue
Hex per channelR 30 · G 8D · B AD

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Every value on this page was computed from “308dad” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.