Nerdulator> put something in

Recognised as Colour

#001251

  • #001251
  • Blue
  • Dark
  • Nearest: Midnight blue

#001251 is a blue with RGB values 0, 18, 81 and HSL 227°, 100%, 16%. It is a dark colour, so white text on it reaches 17.4:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#001251#001251
HEX#001251
RGBrgb(0, 18, 81)
RGB (0–1)0, 0.0706, 0.3176
RGB percentages0%, 7.1%, 31.8%
HSLhsl(226.7, 100%, 15.9%)
HSV / HSBhsv(226.7, 100%, 31.8%)
CMYK100%, 77.8%, 0%, 68.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,689
CSS custom property--colour: #001251;

Brightness & contrast

Relative luminance0.01027WCAG 2.x, 0 is black and 1 is white
Perceived brightness30.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.42:1
Contrast with white17.42:1WCAG normal text: AAA
Contrast with black1.21:1WCAG normal text: Fail
Greyscale equivalent#131313
Inverted#FFEDAE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001E53no red cones; affects about 1% of men; ΔE 10.2 from the original
Deuteranopia#001650no green cones; the most common form, about 1% of men; ΔE 4.3 from the original
Tritanopia#002430no blue cones; rare, and affects men and women equally; ΔE 41.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.42:1WCAG large text: AAA
Contrast with black, large text1.21:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 15.1Dark slateblue · ΔE 22.1Rebecca purple · ΔE 32.3Indigo · ΔE 34.4Navy · ΔE 35.7Dark blue · ΔE 40.7
Nearest named CSS colourMidnight blue (#191970)ΔE 15.15, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#513F00
Analogous#003B51, #160051
Triadic#510012, #125100
Split complementary#511600, #3B5100
Tetradic#51003B, #513F00, #005116

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1E50FF
Lighter +30%#0034EA
Lighter +20%#0029B7
Lighter +10%#001D84
Darker −10%#00071E
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001251
Less saturated −25%#0A1847

Channel breakdown

R0
G18
B81
Red0 (0%)
Green18 (7.1%)
Blue81 (31.8%)
Hue226.67°
Saturation (HSL)100%
Lightness15.88%
Dominant channelBlue
Hex per channelR 00 · G 12 · B 51

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “hex 001251” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.