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Recognised as Colour

#253D3A

  • #253D3A
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#253D3A is a cyan with RGB values 37, 61, 58 and HSL 173°, 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

#253D3A#253D3A
HEX#253D3A
RGBrgb(37, 61, 58)
RGB (0–1)0.1451, 0.2392, 0.2275
RGB percentages14.5%, 23.9%, 22.7%
HSLhsl(172.5, 24.5%, 19.2%)
HSV / HSBhsv(172.5, 39.3%, 23.9%)
CMYK39.3%, 0%, 4.9%, 76.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,440,506
CSS custom property--colour: #253D3A;

Brightness & contrast

Relative luminance0.04036WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.62:1
Contrast with white11.62:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#DAC2C5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3B3A3Ano red cones; affects about 1% of men; ΔE 10.7 from the original
Deuteranopia#36373Ano green cones; the most common form, about 1% of men; ΔE 10.5 from the original
Tritanopia#1D3E3Cno blue cones; rare, and affects men and women equally; ΔE 2.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.62:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 8.1Dim grey · ΔE 23Black · ΔE 25.9Gray · ΔE 31.5Slate grey · ΔE 31.6Teal · ΔE 31.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 8.06, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3D2528
Analogous#253D2E, #25343D
Triadic#3A253D, #3D3A25
Split complementary#3D2534, #3D2E25
Tetradic#2E253D, #3D2528, #343D25

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7EB0AA
Lighter +30%#5F9C95
Lighter +20%#4C7C76
Lighter +10%#385D58
Darker −10%#121D1C
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#194943
Less saturated −25%#313131

Channel breakdown

R37
G61
B58
Red37 (14.5%)
Green61 (23.9%)
Blue58 (22.7%)
Hue172.5°
Saturation (HSL)24.49%
Lightness19.22%
Dominant channelGreen
Hex per channelR 25 · G 3D · B 3A

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Every value on this page was computed from “253d3a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.