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Recognised as Colour

#1BCFEF

  • #1BCFEF
  • Cyan
  • Light
  • Nearest: Sky blue

#1BCFEF is a cyan with RGB values 27, 207, 239 and HSL 189°, 87%, 52%. It is a light colour, so black text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Sky blue.

Colour values

#1BCFEF#1BCFEF
HEX#1BCFEF
RGBrgb(27, 207, 239)
RGB (0–1)0.1059, 0.8118, 0.9373
RGB percentages10.6%, 81.2%, 93.7%
HSLhsl(189.1, 86.9%, 52.2%)
HSV / HSBhsv(189.1, 88.7%, 93.7%)
CMYK88.7%, 13.4%, 0%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,822,703
CSS custom property--colour: #1BCFEF;

Brightness & contrast

Relative luminance0.51091WCAG 2.x, 0 is black and 1 is white
Perceived brightness178.6 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.22:1
Contrast with white1.87:1WCAG normal text: Fail
Contrast with black11.22:1WCAG normal text: AAA
Greyscale equivalent#ABABAB
Inverted#E43010

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B8C8F1no red cones; affects about 1% of men; ΔE 34.2 from the original
Deuteranopia#9EB5EFno green cones; the most common form, about 1% of men; ΔE 36.2 from the original
Tritanopia#00DBD9no blue cones; rare, and affects men and women equally; ΔE 20.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.87:1WCAG large text: Fail
Contrast with black, large text11.22:1WCAG large text: AAA

Named colours

Sky blue · ΔE 16.8Dark turquoise · ΔE 17.1Light skyblue · ΔE 19.7Deep skyblue · ΔE 20.1Medium turquoise · ΔE 20.4Light seagreen · ΔE 24.9
Nearest named CSS colourSky blue (#87CEEB)ΔE 16.81, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EF3B1B
Analogous#1BEFA5, #1B65EF
Triadic#EF1BCF, #CFEF1B
Split complementary#EF1B65, #EFA51B
Tetradic#A51BEF, #EF3B1B, #65EF1B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DAF7FC
Lighter +30%#AAEDF9
Lighter +20%#7AE3F6
Lighter +10%#4BD9F2
Darker −10%#0EADC9
Darker −20%#0B8499
Darker −30%#075B6A
Darker −40%#04323A
More saturated +25%#0BDAFF
Less saturated −25%#3ABAD1

Channel breakdown

R27
G207
B239
Red27 (10.6%)
Green207 (81.2%)
Blue239 (93.7%)
Hue189.06°
Saturation (HSL)86.89%
Lightness52.16%
Dominant channelBlue
Hex per channelR 1B · G CF · B EF

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