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Recognised as Colour

#312A70

  • #312A70
  • Blue
  • Dark
  • Nearest: Dark slateblue

#312A70 is a blue with RGB values 49, 42, 112 and HSL 246°, 45%, 30%. It is a dark colour, so white text on it reaches 12.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#312A70#312A70
HEX#312A70
RGBrgb(49, 42, 112)
RGB (0–1)0.1922, 0.1647, 0.4392
RGB percentages19.2%, 16.5%, 43.9%
HSLhsl(246, 45.5%, 30.2%)
HSV / HSBhsv(246, 62.5%, 43.9%)
CMYK56.3%, 62.5%, 0%, 56.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,222,128
CSS custom property--colour: #312A70;

Brightness & contrast

Relative luminance0.03479WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.38:1
Contrast with white12.38:1WCAG normal text: AAA
Contrast with black1.7:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#CED58F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003772no red cones; affects about 1% of men; ΔE 15.2 from the original
Deuteranopia#00326Fno green cones; the most common form, about 1% of men; ΔE 12.7 from the original
Tritanopia#163B48no blue cones; rare, and affects men and women equally; ΔE 43 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.38:1WCAG large text: AAA
Contrast with black, large text1.7:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 9.4Midnight blue · ΔE 13.7Rebecca purple · ΔE 22.8Indigo · ΔE 30.6Slate blue · ΔE 31.9Navy · ΔE 35.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 9.44, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#69702A
Analogous#2A4670, #542A70
Triadic#70312A, #2A7031
Split complementary#70542A, #46702A
Tetradic#702A46, #69702A, #2A7054

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9790D6
Lighter +30%#756BC8
Lighter +20%#5246BA
Lighter +10%#413895
Darker −10%#211C4B
Darker −20%#110E26
Darker −30%#000001
Darker −40%#000000
More saturated +25%#221783
Less saturated −25%#403D5D

Channel breakdown

R49
G42
B112
Red49 (19.2%)
Green42 (16.5%)
Blue112 (43.9%)
Hue246°
Saturation (HSL)45.45%
Lightness30.2%
Dominant channelBlue
Hex per channelR 31 · G 2A · B 70

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Every value on this page was computed from “312a70” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.