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Recognised as Colour

#1AB5B7

  • #1AB5B7
  • Cyan
  • Dark
  • Nearest: Light seagreen

#1AB5B7 is a cyan with RGB values 26, 181, 183 and HSL 181°, 75%, 41%. It is a dark colour, so black text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#1AB5B7#1AB5B7
HEX#1AB5B7
RGBrgb(26, 181, 183)
RGB (0–1)0.102, 0.7098, 0.7176
RGB percentages10.2%, 71%, 71.8%
HSLhsl(180.8, 75.1%, 41%)
HSV / HSBhsv(180.8, 85.8%, 71.8%)
CMYK85.8%, 1.1%, 0%, 28.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,750,455
CSS custom property--colour: #1AB5B7;

Brightness & contrast

Relative luminance0.36686WCAG 2.x, 0 is black and 1 is white
Perceived brightness152.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.34:1
Contrast with white2.52:1WCAG normal text: Fail
Contrast with black8.34:1WCAG normal text: AAA
Greyscale equivalent#949494
Inverted#E54A48

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A8ACB7no red cones; affects about 1% of men; ΔE 36.8 from the original
Deuteranopia#939DB8no green cones; the most common form, about 1% of men; ΔE 38 from the original
Tritanopia#00BBB5no blue cones; rare, and affects men and women equally; ΔE 5.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.52:1WCAG large text: Fail
Contrast with black, large text8.34:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 5.9Dark turquoise · ΔE 9.6Medium turquoise · ΔE 10.6Dark cyan · ΔE 15.8Cadetblue · ΔE 17.4Turquoise · ΔE 18.3
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 5.85, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B71C1A
Analogous#1AB76A, #1A66B7
Triadic#B71AB5, #B5B71A
Split complementary#B71A66, #B76A1A
Tetradic#6B1AB7, #B71C1A, #67B71A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AAF2F3
Lighter +30%#7DEBED
Lighter +20%#51E4E6
Lighter +10%#24DEE0
Darker −10%#14898A
Darker −20%#0D5D5E
Darker −30%#073031
Darker −40%#010404
More saturated +25%#00CED1
Less saturated −25%#349C9D

Channel breakdown

R26
G181
B183
Red26 (10.2%)
Green181 (71%)
Blue183 (71.8%)
Hue180.76°
Saturation (HSL)75.12%
Lightness40.98%
Dominant channelBlue
Hex per channelR 1A · G B5 · B B7

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Every value on this page was computed from “1ab5b7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.