Nerdulator> put something in

Recognised as Colour

#284D40

  • #284D40
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#284D40 is a cyan with RGB values 40, 77, 64 and HSL 159°, 32%, 23%. It is a dark colour, so white text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#284D40#284D40
HEX#284D40
RGBrgb(40, 77, 64)
RGB (0–1)0.1569, 0.302, 0.251
RGB percentages15.7%, 30.2%, 25.1%
HSLhsl(158.9, 31.6%, 22.9%)
HSV / HSBhsv(158.9, 48.1%, 30.2%)
CMYK48.1%, 0%, 16.9%, 69.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,641,216
CSS custom property--colour: #284D40;

Brightness & contrast

Relative luminance0.06129WCAG 2.x, 0 is black and 1 is white
Perceived brightness66.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.43:1
Contrast with white9.43:1WCAG normal text: AAA
Contrast with black2.23:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#D7B2BF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4B493Fno red cones; affects about 1% of men; ΔE 15.9 from the original
Deuteranopia#454441no green cones; the most common form, about 1% of men; ΔE 16.7 from the original
Tritanopia#1C4D49no blue cones; rare, and affects men and women equally; ΔE 6.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.43:1WCAG large text: AAA
Contrast with black, large text2.23:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.1Dim grey · ΔE 22.7Teal · ΔE 25.1Dark cyan · ΔE 29.2Gray · ΔE 29.4Dark olivegreen · ΔE 29.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.09, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4D2835
Analogous#284D2E, #28474D
Triadic#40284D, #4D4028
Split complementary#4D2847, #4D2E28
Tetradic#2E284D, #4D2835, #474D28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#83BEA9
Lighter +30%#61AD92
Lighter +20%#4B9078
Lighter +10%#396F5C
Darker −10%#172B24
Darker −20%#050A08
Darker −30%#000000
Darker −40%#000000
More saturated +25%#195C44
Less saturated −25%#373E3C

Channel breakdown

R40
G77
B64
Red40 (15.7%)
Green77 (30.2%)
Blue64 (25.1%)
Hue158.92°
Saturation (HSL)31.62%
Lightness22.94%
Dominant channelGreen
Hex per channelR 28 · G 4D · B 40

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 “284d40” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.