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Colour

#043C5A

  • #043C5A
  • Blue
  • Dark
  • Nearest: Dark slate grey

#043C5A is a blue with RGB values 4, 60, 90 and HSL 201°, 91%, 18%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#043C5A#043C5A
HEX#043C5A
RGBrgb(4, 60, 90)
RGB (0–1)0.0157, 0.2353, 0.3529
RGB percentages1.6%, 23.5%, 35.3%
HSLhsl(200.9, 91.5%, 18.4%)
HSV / HSBhsv(200.9, 95.6%, 35.3%)
CMYK95.6%, 33.3%, 0%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer277,594
CSS custom property--colour: #043C5A;

Brightness & contrast

Relative luminance0.03996WCAG 2.x, 0 is black and 1 is white
Perceived brightness55.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.67:1
Contrast with white11.67:1WCAG normal text: AAA
Contrast with black1.8:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#FBC3A5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2E3C5Bno red cones; affects about 1% of men; ΔE 8.8 from the original
Deuteranopia#223559no green cones; the most common form, about 1% of men; ΔE 9.4 from the original
Tritanopia#004447no blue cones; rare, and affects men and women equally; ΔE 20.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.67:1WCAG large text: AAA
Contrast with black, large text1.8:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 21.6Steel blue · ΔE 30.4Dim grey · ΔE 31Slate grey · ΔE 31.7Black · ΔE 33Light slate grey · ΔE 34.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 21.65, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A2204
Analogous#045A4D, #04115A
Triadic#5A043C, #3C5A04
Split complementary#5A0411, #5A4D04
Tetradic#4D045A, #5A2204, #115A04

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#34B2F6
Lighter +30%#0B9EEC
Lighter +20%#087DBC
Lighter +10%#065D8B
Darker −10%#021B29
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003D5E
Less saturated −25%#10384E

Channel breakdown

R4
G60
B90
Red4 (1.6%)
Green60 (23.5%)
Blue90 (35.3%)
Hue200.93°
Saturation (HSL)91.49%
Lightness18.43%
Dominant channelBlue
Hex per channelR 04 · G 3C · B 5A

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Every value on this page was computed from “043c5a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.