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Colour

#045B8D

  • #045B8D
  • Blue
  • Dark
  • Nearest: Steel blue

#045B8D is a blue with RGB values 4, 91, 141 and HSL 202°, 94%, 28%. It is a dark colour, so white text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#045B8D#045B8D
HEX#045B8D
RGBrgb(4, 91, 141)
RGB (0–1)0.0157, 0.3569, 0.5529
RGB percentages1.6%, 35.7%, 55.3%
HSLhsl(201.9, 94.5%, 28.4%)
HSV / HSBhsv(201.9, 97.2%, 55.3%)
CMYK97.2%, 35.5%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer285,581
CSS custom property--colour: #045B8D;

Brightness & contrast

Relative luminance0.09431WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.28:1
Contrast with white7.28:1WCAG normal text: AAA
Contrast with black2.89:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#FBA472

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#435D8Fno red cones; affects about 1% of men; ΔE 9.6 from the original
Deuteranopia#30518Cno green cones; the most common form, about 1% of men; ΔE 11.5 from the original
Tritanopia#00676Dno blue cones; rare, and affects men and women equally; ΔE 30.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.28:1WCAG large text: AAA
Contrast with black, large text2.89:1WCAG large text: Fail

Named colours

Steel blue · ΔE 15.8Slate grey · ΔE 28.4Light slate grey · ΔE 29.8Dark slateblue · ΔE 30.9Dark slate grey · ΔE 31.9Cornflower blue · ΔE 32
Nearest named CSS colourSteel blue (#4682B4)ΔE 15.79, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D3604
Analogous#048D7A, #04178D
Triadic#8D045B, #5B8D04
Split complementary#8D0417, #8D7B04
Tetradic#7A048D, #8D3604, #168D04

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#62C3FB
Lighter +30%#31B0F9
Lighter +20%#079BF0
Lighter +10%#057BBF
Darker −10%#033B5B
Darker −20%#011B2A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#005C91
Less saturated −25%#16567B

Channel breakdown

R4
G91
B141
Red4 (1.6%)
Green91 (35.7%)
Blue141 (55.3%)
Hue201.9°
Saturation (HSL)94.48%
Lightness28.43%
Dominant channelBlue
Hex per channelR 04 · G 5B · B 8D

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Every value on this page was computed from “045b8d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.