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Recognised as Colour

#397E8A

  • #397E8A
  • Cyan
  • Dark
  • Nearest: Teal

#397E8A is a cyan with RGB values 57, 126, 138 and HSL 189°, 42%, 38%. It is a dark colour, so white text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Teal.

Colour values

#397E8A#397E8A
HEX#397E8A
RGBrgb(57, 126, 138)
RGB (0–1)0.2235, 0.4941, 0.5412
RGB percentages22.4%, 49.4%, 54.1%
HSLhsl(188.9, 41.5%, 38.2%)
HSV / HSBhsv(188.9, 58.7%, 54.1%)
CMYK58.7%, 8.7%, 0%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,767,946
CSS custom property--colour: #397E8A;

Brightness & contrast

Relative luminance0.17627WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.64:1
Contrast with white4.64:1WCAG normal text: AA
Contrast with black4.53:1WCAG normal text: AA
Greyscale equivalent#707070
Inverted#C68175

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#747A8Bno red cones; affects about 1% of men; ΔE 19.8 from the original
Deuteranopia#67718Ano green cones; the most common form, about 1% of men; ΔE 20.3 from the original
Tritanopia#008382no blue cones; rare, and affects men and women equally; ΔE 12.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.64:1WCAG large text: AAA
Contrast with black, large text4.53:1WCAG large text: AAA

Named colours

Teal · ΔE 11.8Cadetblue · ΔE 13.5Dark cyan · ΔE 13.7Slate grey · ΔE 16.5Light slate grey · ΔE 17.3Dark slate grey · ΔE 21
Nearest named CSS colourTeal (#008080)ΔE 11.84, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8A4539
Analogous#398A6E, #39558A
Triadic#8A397E, #7E8A39
Split complementary#8A3955, #8A6E39
Tetradic#6E398A, #8A4539, #558A39

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B0D8DF
Lighter +30%#8CC6D0
Lighter +20%#68B4C1
Lighter +10%#489FAE
Darker −10%#2A5D66
Darker −20%#1B3C42
Darker −30%#0C1B1E
Darker −40%#000000
More saturated +25%#218FA2
Less saturated −25%#516D72

Channel breakdown

R57
G126
B138
Red57 (22.4%)
Green126 (49.4%)
Blue138 (54.1%)
Hue188.89°
Saturation (HSL)41.54%
Lightness38.24%
Dominant channelBlue
Hex per channelR 39 · G 7E · B 8A

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Every value on this page was computed from “397e8a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.