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Colour

#00317C

  • #00317C
  • Blue
  • Dark
  • Nearest: Dark slateblue

#00317C is a blue with RGB values 0, 49, 124 and HSL 216°, 100%, 24%. It is a dark colour, so white text on it reaches 12.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00317C#00317C
HEX#00317C
RGBrgb(0, 49, 124)
RGB (0–1)0, 0.1922, 0.4863
RGB percentages0%, 19.2%, 48.6%
HSLhsl(216.3, 100%, 24.3%)
HSV / HSBhsv(216.3, 100%, 48.6%)
CMYK100%, 60.5%, 0%, 51.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,668
CSS custom property--colour: #00317C;

Brightness & contrast

Relative luminance0.03652WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.14:1
Contrast with white12.14:1WCAG normal text: AAA
Contrast with black1.73:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#FFCE83

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003B7Fno red cones; affects about 1% of men; ΔE 7.5 from the original
Deuteranopia#00317Bno green cones; the most common form, about 1% of men; ΔE 0.7 from the original
Tritanopia#004451no blue cones; rare, and affects men and women equally; ΔE 46.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.14:1WCAG large text: AAA
Contrast with black, large text1.73:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.3Midnight blue · ΔE 15.5Rebecca purple · ΔE 26.9Slate blue · ΔE 31.2Royal blue · ΔE 32.6Indigo · ΔE 34.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.31, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7C4B00
Analogous#006F7C, #0D007C
Triadic#7C0031, #317C00
Split complementary#7C0D00, #6F7C00
Tetradic#7C006F, #7C4B00, #007C0D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4991FF
Lighter +30%#1672FF
Lighter +20%#0059E2
Lighter +10%#0045AF
Darker −10%#001D49
Darker −20%#000916
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00317C
Less saturated −25%#10346D

Channel breakdown

R0
G49
B124
Red0 (0%)
Green49 (19.2%)
Blue124 (48.6%)
Hue216.29°
Saturation (HSL)100%
Lightness24.31%
Dominant channelBlue
Hex per channelR 00 · G 31 · B 7C

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Every value on this page was computed from “00317c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.