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Recognised as Colour

#045A3F

  • #045A3F
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#045A3F is a cyan with RGB values 4, 90, 63 and HSL 161°, 91%, 18%. It is a dark colour, so white text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#045A3F#045A3F
HEX#045A3F
RGBrgb(4, 90, 63)
RGB (0–1)0.0157, 0.3529, 0.2471
RGB percentages1.6%, 35.3%, 24.7%
HSLhsl(161.2, 91.5%, 18.4%)
HSV / HSBhsv(161.2, 95.6%, 35.3%)
CMYK95.6%, 0%, 30%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer285,247
CSS custom property--colour: #045A3F;

Brightness & contrast

Relative luminance0.07697WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.27:1
Contrast with white8.27:1WCAG normal text: AAA
Contrast with black2.54:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#FBA5C0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#58533Dno red cones; affects about 1% of men; ΔE 28.9 from the original
Deuteranopia#4E4C41no green cones; the most common form, about 1% of men; ΔE 29.2 from the original
Tritanopia#005A53no blue cones; rare, and affects men and women equally; ΔE 13 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.27:1WCAG large text: AAA
Contrast with black, large text2.54:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 22.8Sea green · ΔE 23.1Teal · ΔE 23.2Dark olivegreen · ΔE 25.9Dark cyan · ΔE 26.2Dim grey · ΔE 33.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 22.84, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A041F
Analogous#045A14, #044A5A
Triadic#3F045A, #5A3F04
Split complementary#5A044A, #5A1404
Tetradic#14045A, #5A041F, #4A5A04

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#34F6B9
Lighter +30%#0BECA6
Lighter +20%#08BC83
Lighter +10%#068B61
Darker −10%#02291D
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#005E40
Less saturated −25%#104E3B

Channel breakdown

R4
G90
B63
Red4 (1.6%)
Green90 (35.3%)
Blue63 (24.7%)
Hue161.16°
Saturation (HSL)91.49%
Lightness18.43%
Dominant channelGreen
Hex per channelR 04 · G 5A · B 3F

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Every value on this page was computed from “045a3f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.