Nerdulator> put something in

Recognised as Colour

#004587

  • #004587
  • Blue
  • Dark
  • Nearest: Dark slateblue

#004587 is a blue with RGB values 0, 69, 135 and HSL 209°, 100%, 26%. It is a dark colour, so white text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#004587#004587
HEX#004587
RGBrgb(0, 69, 135)
RGB (0–1)0, 0.2706, 0.5294
RGB percentages0%, 27.1%, 52.9%
HSLhsl(209.3, 100%, 26.5%)
HSV / HSBhsv(209.3, 100%, 52.9%)
CMYK100%, 48.9%, 0%, 47.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer17,799
CSS custom property--colour: #004587;

Brightness & contrast

Relative luminance0.06006WCAG 2.x, 0 is black and 1 is white
Perceived brightness69.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.54:1
Contrast with white9.54:1WCAG normal text: AAA
Contrast with black2.2:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#FFBA78

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1E4B89no red cones; affects about 1% of men; ΔE 4.1 from the original
Deuteranopia#004086no green cones; the most common form, about 1% of men; ΔE 4 from the original
Tritanopia#00555Fno blue cones; rare, and affects men and women equally; ΔE 40.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.54:1WCAG large text: AAA
Contrast with black, large text2.2:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 17.4Midnight blue · ΔE 27.8Steel blue · ΔE 28.1Cornflower blue · ΔE 33.3Royal blue · ΔE 34.5Rebecca purple · ΔE 34.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.44, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#874200
Analogous#008786, #000187
Triadic#870045, #458700
Split complementary#870001, #878600
Tetradic#860087, #874200, #018700

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#54ABFF
Lighter +30%#2192FF
Lighter +20%#0079ED
Lighter +10%#005FBA
Darker −10%#002B54
Darker −20%#001121
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004587
Less saturated −25%#114576

Channel breakdown

R0
G69
B135
Red0 (0%)
Green69 (27.1%)
Blue135 (52.9%)
Hue209.33°
Saturation (HSL)100%
Lightness26.47%
Dominant channelBlue
Hex per channelR 00 · G 45 · B 87

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 004587” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.