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Colour

#013D7F

  • #013D7F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#013D7F is a blue with RGB values 1, 61, 127 and HSL 211°, 98%, 25%. It is a dark colour, so white text on it reaches 10.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#013D7F#013D7F
HEX#013D7F
RGBrgb(1, 61, 127)
RGB (0–1)0.0039, 0.2392, 0.498
RGB percentages0.4%, 23.9%, 49.8%
HSLhsl(211.4, 98.4%, 25.1%)
HSV / HSBhsv(211.4, 99.2%, 49.8%)
CMYK99.2%, 52%, 0%, 50.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer81,279
CSS custom property--colour: #013D7F;

Brightness & contrast

Relative luminance0.04876WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.63:1
Contrast with white10.63:1WCAG normal text: AAA
Contrast with black1.98:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#FEC280

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#114481no red cones; affects about 1% of men; ΔE 4.9 from the original
Deuteranopia#00397Eno green cones; the most common form, about 1% of men; ΔE 3.1 from the original
Tritanopia#004D58no blue cones; rare, and affects men and women equally; ΔE 40.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.63:1WCAG large text: AAA
Contrast with black, large text1.98:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15.8Midnight blue · ΔE 24.6Steel blue · ΔE 31.6Rebecca purple · ΔE 33.1Royal blue · ΔE 35.2Slate blue · ΔE 35.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.83, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7F4301
Analogous#017C7F, #04017F
Triadic#7F013D, #3D7F01
Split complementary#7F0401, #7C7F01
Tetradic#7F017C, #7F4301, #017F04

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4EA2FE
Lighter +30%#1C87FD
Lighter +20%#026EE4
Lighter +10%#0155B2
Darker −10%#01254C
Darker −20%#000C1A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003D80
Less saturated −25%#113E6F

Channel breakdown

R1
G61
B127
Red1 (0.4%)
Green61 (23.9%)
Blue127 (49.8%)
Hue211.43°
Saturation (HSL)98.44%
Lightness25.1%
Dominant channelBlue
Hex per channelR 01 · G 3D · B 7F

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Every value on this page was computed from “013d7f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.