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Colour

#253D3D

  • #253D3D
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#253D3D is a cyan with RGB values 37, 61, 61 and HSL 180°, 24%, 19%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#253D3D#253D3D
HEX#253D3D
RGBrgb(37, 61, 61)
RGB (0–1)0.1451, 0.2392, 0.2392
RGB percentages14.5%, 23.9%, 23.9%
HSLhsl(180, 24.5%, 19.2%)
HSV / HSBhsv(180, 39.3%, 23.9%)
CMYK39.3%, 0%, 0%, 76.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,440,509
CSS custom property--colour: #253D3D;

Brightness & contrast

Relative luminance0.04068WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.58:1
Contrast with white11.58:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#DAC2C2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3A3B3Dno red cones; affects about 1% of men; ΔE 9.5 from the original
Deuteranopia#36373Dno green cones; the most common form, about 1% of men; ΔE 10.4 from the original
Tritanopia#1C3E3Dno blue cones; rare, and affects men and women equally; ΔE 3.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.58:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 7.8Dim grey · ΔE 22.7Black · ΔE 25.8Slate grey · ΔE 30.8Gray · ΔE 31.2Teal · ΔE 31.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 7.79, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3D2525
Analogous#253D31, #25313D
Triadic#3D253D, #3D3D25
Split complementary#3D2531, #3D3125
Tetradic#31253D, #3D2525, #313D25

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7EB0B0
Lighter +30%#5F9C9C
Lighter +20%#4C7C7C
Lighter +10%#385D5D
Darker −10%#121D1D
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#194949
Less saturated −25%#313131

Channel breakdown

R37
G61
B61
Red37 (14.5%)
Green61 (23.9%)
Blue61 (23.9%)
Hue180°
Saturation (HSL)24.49%
Lightness19.22%
Dominant channelGreen and Blue
Hex per channelR 25 · G 3D · B 3D

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Every value on this page was computed from “253d3d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.