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Recognised as Colour

#004157

  • #004157
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#004157 is a cyan with RGB values 0, 65, 87 and HSL 195°, 100%, 17%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#004157#004157
HEX#004157
RGBrgb(0, 65, 87)
RGB (0–1)0, 0.2549, 0.3412
RGB percentages0%, 25.5%, 34.1%
HSLhsl(195.2, 100%, 17.1%)
HSV / HSBhsv(195.2, 100%, 34.1%)
CMYK100%, 25.3%, 0%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,727
CSS custom property--colour: #004157;

Brightness & contrast

Relative luminance0.04469WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.09:1
Contrast with white11.09:1WCAG normal text: AAA
Contrast with black1.89:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#FFBEA8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#354058no red cones; affects about 1% of men; ΔE 12.1 from the original
Deuteranopia#2B3857no green cones; the most common form, about 1% of men; ΔE 13.9 from the original
Tritanopia#004748no blue cones; rare, and affects men and women equally; ΔE 15.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.09:1WCAG large text: AAA
Contrast with black, large text1.89:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 16Dim grey · ΔE 28.2Slate grey · ΔE 29.6Steel blue · ΔE 31.1Teal · ΔE 31.8Light slate grey · ΔE 32.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.99, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#571600
Analogous#005742, #001557
Triadic#570041, #415700
Split complementary#570015, #574100
Tetradic#420057, #571600, #165700

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#24C8FF
Lighter +30%#00B3F0
Lighter +20%#008DBD
Lighter +10%#00678A
Darker −10%#001B24
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004157
Less saturated −25%#0B3C4C

Channel breakdown

R0
G65
B87
Red0 (0%)
Green65 (25.5%)
Blue87 (34.1%)
Hue195.17°
Saturation (HSL)100%
Lightness17.06%
Dominant channelBlue
Hex per channelR 00 · G 41 · B 57

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Every value on this page was computed from “hex 004157” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.