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Recognised as Colour

#12B379

  • #12B379
  • Cyan
  • Dark
  • Nearest: Medium seagreen

#12B379 is a cyan with RGB values 18, 179, 121 and HSL 158°, 82%, 39%. It is a dark colour, so black text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#12B379#12B379
HEX#12B379
RGBrgb(18, 179, 121)
RGB (0–1)0.0706, 0.702, 0.4745
RGB percentages7.1%, 70.2%, 47.5%
HSLhsl(158.4, 81.7%, 38.6%)
HSV / HSBhsv(158.4, 89.9%, 70.2%)
CMYK89.9%, 0%, 32.4%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,225,593
CSS custom property--colour: #12B379;

Brightness & contrast

Relative luminance0.33749WCAG 2.x, 0 is black and 1 is white
Perceived brightness143.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.75:1
Contrast with white2.71:1WCAG normal text: Fail
Contrast with black7.75:1WCAG normal text: AAA
Greyscale equivalent#8D8D8D
Inverted#ED4C86

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B0A575no red cones; affects about 1% of men; ΔE 48.8 from the original
Deuteranopia#9F987Dno green cones; the most common form, about 1% of men; ΔE 49.8 from the original
Tritanopia#00B2A4no blue cones; rare, and affects men and women equally; ΔE 25.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.71:1WCAG large text: Fail
Contrast with black, large text7.75:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 6.2Sea green · ΔE 17.8Medium aquamarine · ΔE 20.3Light green · ΔE 28.6Dark seagreen · ΔE 28.8Light seagreen · ΔE 29.2
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 6.16, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B3124C
Analogous#12B328, #129DB3
Triadic#7912B3, #B37912
Split complementary#B3129D, #B32812
Tetradic#2812B3, #B3124C, #9DB312

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9CF5D5
Lighter +30%#6EF0C1
Lighter +20%#3FECAE
Lighter +10%#17E198
Darker −10%#0D855A
Darker −20%#09563A
Darker −30%#04281B
Darker −40%#000000
More saturated +25%#00C57E
Less saturated −25%#2B9A72

Channel breakdown

R18
G179
B121
Red18 (7.1%)
Green179 (70.2%)
Blue121 (47.5%)
Hue158.39°
Saturation (HSL)81.73%
Lightness38.63%
Dominant channelGreen
Hex per channelR 12 · G B3 · B 79

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Every value on this page was computed from “12b379” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.