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Recognised as Colour

#1BBFB9

  • #1BBFB9
  • Cyan
  • Dark
  • Nearest: Light seagreen

#1BBFB9 is a cyan with RGB values 27, 191, 185 and HSL 178°, 75%, 43%. It is a dark colour, so black text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#1BBFB9#1BBFB9
HEX#1BBFB9
RGBrgb(27, 191, 185)
RGB (0–1)0.1059, 0.749, 0.7255
RGB percentages10.6%, 74.9%, 72.5%
HSLhsl(177.8, 75.2%, 42.7%)
HSV / HSBhsv(177.8, 85.9%, 74.9%)
CMYK85.9%, 0%, 3.1%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,818,553
CSS custom property--colour: #1BBFB9;

Brightness & contrast

Relative luminance0.40997WCAG 2.x, 0 is black and 1 is white
Perceived brightness159.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.2:1
Contrast with white2.28:1WCAG normal text: Fail
Contrast with black9.2:1WCAG normal text: AAA
Greyscale equivalent#9C9C9C
Inverted#E44046

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B3B4B9no red cones; affects about 1% of men; ΔE 40.5 from the original
Deuteranopia#9EA5BAno green cones; the most common form, about 1% of men; ΔE 41.5 from the original
Tritanopia#00C5BDno blue cones; rare, and affects men and women equally; ΔE 3.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.28:1WCAG large text: Fail
Contrast with black, large text9.2:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 5.1Medium turquoise · ΔE 7Dark turquoise · ΔE 7.5Turquoise · ΔE 12.7Medium aquamarine · ΔE 17.3Dark cyan · ΔE 20
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 5.09, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BF1B21
Analogous#1BBF67, #1B73BF
Triadic#B91BBF, #BFB91B
Split complementary#BF1B73, #BF671B
Tetradic#671BBF, #BF1B21, #73BF1B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B2F4F2
Lighter +30%#85EEEA
Lighter +20%#59E7E2
Lighter +10%#2CE1DB
Darker −10%#15928E
Darker −20%#0E6662
Darker −30%#083937
Darker −40%#020C0C
More saturated +25%#00DAD2
Less saturated −25%#36A4A0

Channel breakdown

R27
G191
B185
Red27 (10.6%)
Green191 (74.9%)
Blue185 (72.5%)
Hue177.8°
Saturation (HSL)75.23%
Lightness42.75%
Dominant channelGreen
Hex per channelR 1B · G BF · B B9

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Every value on this page was computed from “1bbfb9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.