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Recognised as Colour

#012357

  • #012357
  • Blue
  • Dark
  • Nearest: Dark slateblue

#012357 is a blue with RGB values 1, 35, 87 and HSL 216°, 98%, 17%. It is a dark colour, so white text on it reaches 15.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#012357#012357
HEX#012357
RGBrgb(1, 35, 87)
RGB (0–1)0.0039, 0.1373, 0.3412
RGB percentages0.4%, 13.7%, 34.1%
HSLhsl(216.3, 97.7%, 17.3%)
HSV / HSBhsv(216.3, 98.9%, 34.1%)
CMYK98.9%, 59.8%, 0%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer74,583
CSS custom property--colour: #012357;

Brightness & contrast

Relative luminance0.01897WCAG 2.x, 0 is black and 1 is white
Perceived brightness39.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.22:1
Contrast with white15.22:1WCAG normal text: AAA
Contrast with black1.38:1WCAG normal text: Fail
Greyscale equivalent#202020
Inverted#FEDCA8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002A59no red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#002256no green cones; the most common form, about 1% of men; ΔE 0.5 from the original
Tritanopia#003039no blue cones; rare, and affects men and women equally; ΔE 33.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.22:1WCAG large text: AAA
Contrast with black, large text1.38:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 22.5Midnight blue · ΔE 24.8Rebecca purple · ΔE 37.9Black · ΔE 39.6Steel blue · ΔE 40.9Dark slate grey · ΔE 42.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 22.5, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#573501
Analogous#014E57, #0A0157
Triadic#570123, #235701
Split complementary#570A01, #4E5701
Tetradic#57014E, #573501, #01570A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#277CFD
Lighter +30%#0360EE
Lighter +20%#024CBC
Lighter +10%#023789
Darker −10%#000F25
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002358
Less saturated −25%#0C254C

Channel breakdown

R1
G35
B87
Red1 (0.4%)
Green35 (13.7%)
Blue87 (34.1%)
Hue216.28°
Saturation (HSL)97.73%
Lightness17.25%
Dominant channelBlue
Hex per channelR 01 · G 23 · B 57

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Every value on this page was computed from “hex 012357” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.