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Colour

#154B7F

  • #154B7F
  • Blue
  • Dark
  • Nearest: Steel blue

#154B7F is a blue with RGB values 21, 75, 127 and HSL 209°, 72%, 29%. It is a dark colour, so white text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#154B7F#154B7F
HEX#154B7F
RGBrgb(21, 75, 127)
RGB (0–1)0.0824, 0.2941, 0.498
RGB percentages8.2%, 29.4%, 49.8%
HSLhsl(209.4, 71.6%, 29%)
HSV / HSBhsv(209.4, 83.5%, 49.8%)
CMYK83.5%, 40.9%, 0%, 50.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,395,583
CSS custom property--colour: #154B7F;

Brightness & contrast

Relative luminance0.06724WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.96:1
Contrast with white8.96:1WCAG normal text: AAA
Contrast with black2.34:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#EAB480

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#324F81no red cones; affects about 1% of men; ΔE 4.8 from the original
Deuteranopia#21457Eno green cones; the most common form, about 1% of men; ΔE 5.8 from the original
Tritanopia#00575Eno blue cones; rare, and affects men and women equally; ΔE 32.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.96:1WCAG large text: AAA
Contrast with black, large text2.34:1WCAG large text: Fail

Named colours

Steel blue · ΔE 22.5Dark slateblue · ΔE 24.6Slate grey · ΔE 32.5Dark slate grey · ΔE 33.8Light slate grey · ΔE 34.3Cornflower blue · ΔE 34.9
Nearest named CSS colourSteel blue (#4682B4)ΔE 22.47, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7F4915
Analogous#157F7E, #15167F
Triadic#7F154B, #4B7F15
Split complementary#7F1516, #7F7E15
Tetradic#7E157F, #7F4915, #167F15

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#77B1E9
Lighter +30%#4C98E1
Lighter +20%#237FD7
Lighter +10%#1C65AB
Darker −10%#0E3153
Darker −20%#071727
Darker −30%#000000
Darker −40%#000000
More saturated +25%#034B92
Less saturated −25%#284B6D

Channel breakdown

R21
G75
B127
Red21 (8.2%)
Green75 (29.4%)
Blue127 (49.8%)
Hue209.43°
Saturation (HSL)71.62%
Lightness29.02%
Dominant channelBlue
Hex per channelR 15 · G 4B · B 7F

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Every value on this page was computed from “154b7f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.