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Recognised as Colour

#1E157F

  • #1E157F
  • Blue
  • Dark
  • Nearest: Midnight blue

#1E157F is a blue with RGB values 30, 21, 127 and HSL 245°, 72%, 29%. It is a dark colour, so white text on it reaches 14.3:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1E157F#1E157F
HEX#1E157F
RGBrgb(30, 21, 127)
RGB (0–1)0.1176, 0.0824, 0.498
RGB percentages11.8%, 8.2%, 49.8%
HSLhsl(245.1, 71.6%, 29%)
HSV / HSBhsv(245.1, 83.5%, 49.8%)
CMYK76.4%, 83.5%, 0%, 50.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,971,583
CSS custom property--colour: #1E157F;

Brightness & contrast

Relative luminance0.02345WCAG 2.x, 0 is black and 1 is white
Perceived brightness48.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.3:1
Contrast with white14.3:1WCAG normal text: AAA
Contrast with black1.47:1WCAG normal text: Fail
Greyscale equivalent#1F1F1F
Inverted#E1EA80

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002F82no red cones; affects about 1% of men; ΔE 19.4 from the original
Deuteranopia#00257Dno green cones; the most common form, about 1% of men; ΔE 13.4 from the original
Tritanopia#00364Bno blue cones; rare, and affects men and women equally; ΔE 61.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.3:1WCAG large text: AAA
Contrast with black, large text1.47:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 10.9Navy · ΔE 11.9Indigo · ΔE 13.1Dark blue · ΔE 16.2Rebecca purple · ΔE 18.8Dark slateblue · ΔE 24.3
Nearest named CSS colourMidnight blue (#191970)ΔE 10.87, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#767F15
Analogous#15417F, #53157F
Triadic#7F1E15, #157F1E
Split complementary#7F5315, #417F15
Tetradic#7F1541, #767F15, #157F53

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8177E9
Lighter +30%#584CE1
Lighter +20%#3323D7
Lighter +10%#281CAB
Darker −10%#140E53
Darker −20%#090727
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0F0392
Less saturated −25%#2D286D

Channel breakdown

R30
G21
B127
Red30 (11.8%)
Green21 (8.2%)
Blue127 (49.8%)
Hue245.09°
Saturation (HSL)71.62%
Lightness29.02%
Dominant channelBlue
Hex per channelR 1E · G 15 · B 7F

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Every value on this page was computed from “1e157f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.