Nerdulator> put something in

Recognised as Colour

#01428C

  • #01428C
  • Blue
  • Dark
  • Nearest: Dark slateblue

#01428C is a blue with RGB values 1, 66, 140 and HSL 212°, 99%, 28%. It is a dark colour, so white text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#01428C#01428C
HEX#01428C
RGBrgb(1, 66, 140)
RGB (0–1)0.0039, 0.2588, 0.549
RGB percentages0.4%, 25.9%, 54.9%
HSLhsl(211.9, 98.6%, 27.6%)
HSV / HSBhsv(211.9, 99.3%, 54.9%)
CMYK99.3%, 52.9%, 0%, 45.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer82,572
CSS custom property--colour: #01428C;

Brightness & contrast

Relative luminance0.05796WCAG 2.x, 0 is black and 1 is white
Perceived brightness69.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.73:1
Contrast with white9.73:1WCAG normal text: AAA
Contrast with black2.16:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#FEBD73

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0C4A8Fno red cones; affects about 1% of men; ΔE 5.3 from the original
Deuteranopia#003F8Bno green cones; the most common form, about 1% of men; ΔE 2.1 from the original
Tritanopia#005460no blue cones; rare, and affects men and women equally; ΔE 44.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.73:1WCAG large text: AAA
Contrast with black, large text2.16:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13.8Midnight blue · ΔE 23.1Royal blue · ΔE 30.1Rebecca purple · ΔE 30.2Slate blue · ΔE 30.7Steel blue · ΔE 32.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.79, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8C4B01
Analogous#01888C, #05018C
Triadic#8C0142, #428C01
Split complementary#8C0501, #888C01
Tetradic#8C0188, #8C4B01, #018C05

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5BA7FE
Lighter +30%#298CFD
Lighter +20%#0272F1
Lighter +10%#015ABF
Darker −10%#012A59
Darker −20%#001227
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00428D
Less saturated −25%#13437A

Channel breakdown

R1
G66
B140
Red1 (0.4%)
Green66 (25.9%)
Blue140 (54.9%)
Hue211.94°
Saturation (HSL)98.58%
Lightness27.65%
Dominant channelBlue
Hex per channelR 01 · G 42 · B 8C

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 “01428c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.