Nerdulator> put something in

Recognised as Colour

#043EB4

  • #043EB4
  • Blue
  • Dark
  • Nearest: Slate blue

#043EB4 is a blue with RGB values 4, 62, 180 and HSL 220°, 96%, 36%. It is a dark colour, so white text on it reaches 8.9:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#043EB4#043EB4
HEX#043EB4
RGBrgb(4, 62, 180)
RGB (0–1)0.0157, 0.2431, 0.7059
RGB percentages1.6%, 24.3%, 70.6%
HSLhsl(220.2, 95.7%, 36.1%)
HSV / HSBhsv(220.2, 97.8%, 70.6%)
CMYK97.8%, 65.6%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer278,196
CSS custom property--colour: #043EB4;

Brightness & contrast

Relative luminance0.06766WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.92:1
Contrast with white8.92:1WCAG normal text: AAA
Contrast with black2.35:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#FBC14B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0051B8no red cones; affects about 1% of men; ΔE 14.1 from the original
Deuteranopia#0042B2no green cones; the most common form, about 1% of men; ΔE 4.5 from the original
Tritanopia#005E73no blue cones; rare, and affects men and women equally; ΔE 67.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.92:1WCAG large text: AAA
Contrast with black, large text2.35:1WCAG large text: Fail

Named colours

Slate blue · ΔE 16.9Royal blue · ΔE 17.7Rebecca purple · ΔE 21.9Medium slateblue · ΔE 22.6Midnight blue · ΔE 22.8Navy · ΔE 23.8
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 16.86, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B47A04
Analogous#0496B4, #2204B4
Triadic#B4043E, #3EB404
Split complementary#B42204, #96B404
Tetradic#B40496, #B47A04, #04B422

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#88AEFC
Lighter +30%#568CFB
Lighter +20%#246AFA
Lighter +10%#054FE6
Darker −10%#032D82
Darker −20%#021C50
Darker −30%#010A1E
Darker −40%#000000
More saturated +25%#003DB8
Less saturated −25%#1B469D

Channel breakdown

R4
G62
B180
Red4 (1.6%)
Green62 (24.3%)
Blue180 (70.6%)
Hue220.23°
Saturation (HSL)95.65%
Lightness36.08%
Dominant channelBlue
Hex per channelR 04 · G 3E · B B4

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 “043eb4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.