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Colour

#15535F

  • #15535F
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#15535F is a cyan with RGB values 21, 83, 95 and HSL 190°, 64%, 23%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#15535F#15535F
HEX#15535F
RGBrgb(21, 83, 95)
RGB (0–1)0.0824, 0.3255, 0.3725
RGB percentages8.2%, 32.5%, 37.3%
HSLhsl(189.7, 63.8%, 22.7%)
HSV / HSBhsv(189.7, 77.9%, 37.3%)
CMYK77.9%, 12.6%, 0%, 62.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,397,599
CSS custom property--colour: #15535F;

Brightness & contrast

Relative luminance0.07172WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.63:1
Contrast with white8.63:1WCAG normal text: AAA
Contrast with black2.43:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#EAACA0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4A5060no red cones; affects about 1% of men; ΔE 16.5 from the original
Deuteranopia#40485Fno green cones; the most common form, about 1% of men; ΔE 17.8 from the original
Tritanopia#005857no blue cones; rare, and affects men and women equally; ΔE 10.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.63:1WCAG large text: AAA
Contrast with black, large text2.43:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.4Teal · ΔE 21.8Dim grey · ΔE 22.9Slate grey · ΔE 24.3Dark cyan · ΔE 25.8Light slate grey · ΔE 26.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.4, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5F2115
Analogous#155F46, #152E5F
Triadic#5F1553, #535F15
Split complementary#5F152E, #5F4615
Tetradic#46155F, #5F2115, #2E5F15

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#63C9DD
Lighter +30%#3ABAD3
Lighter +20%#279CB3
Lighter +10%#1E7789
Darker −10%#0C2F35
Darker −20%#030A0B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#075D6E
Less saturated −25%#234951

Channel breakdown

R21
G83
B95
Red21 (8.2%)
Green83 (32.5%)
Blue95 (37.3%)
Hue189.73°
Saturation (HSL)63.79%
Lightness22.75%
Dominant channelBlue
Hex per channelR 15 · G 53 · B 5F

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Every value on this page was computed from “15535f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.