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Recognised as Colour

#01B3EE

  • #01B3EE
  • Cyan
  • Dark
  • Nearest: Deep skyblue

#01B3EE is a cyan with RGB values 1, 179, 238 and HSL 195°, 99%, 47%. It is a dark colour, so black text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#01B3EE#01B3EE
HEX#01B3EE
RGBrgb(1, 179, 238)
RGB (0–1)0.0039, 0.702, 0.9333
RGB percentages0.4%, 70.2%, 93.3%
HSLhsl(194.9, 99.2%, 46.9%)
HSV / HSBhsv(194.9, 99.6%, 93.3%)
CMYK99.6%, 24.8%, 0%, 6.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer111,598
CSS custom property--colour: #01B3EE;

Brightness & contrast

Relative luminance0.3842WCAG 2.x, 0 is black and 1 is white
Perceived brightness159 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.68:1
Contrast with white2.42:1WCAG normal text: Fail
Contrast with black8.68:1WCAG normal text: AAA
Greyscale equivalent#919191
Inverted#FE4C11

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#95B1F1no red cones; affects about 1% of men; ΔE 24 from the original
Deuteranopia#7A9EEDno green cones; the most common form, about 1% of men; ΔE 26.5 from the original
Tritanopia#00C3C7no blue cones; rare, and affects men and women equally; ΔE 33.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.42:1WCAG large text: Fail
Contrast with black, large text8.68:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 5Light skyblue · ΔE 17.4Sky blue · ΔE 21.7Steel blue · ΔE 22Cornflower blue · ΔE 28.9Light steelblue · ΔE 31.1
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 4.98, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EE3C01
Analogous#01EEB2, #013DEE
Triadic#EE01B3, #B3EE01
Split complementary#EE013D, #EEB301
Tetradic#B201EE, #EE3C01, #3CEE01

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCEEFF
Lighter +30%#89E1FF
Lighter +20%#57D5FE
Lighter +10%#24C8FE
Darker −10%#018DBB
Darker −20%#016788
Darker −30%#004056
Darker −40%#001A23
More saturated +25%#00B4EF
Less saturated −25%#1FA4D0

Channel breakdown

R1
G179
B238
Red1 (0.4%)
Green179 (70.2%)
Blue238 (93.3%)
Hue194.94°
Saturation (HSL)99.16%
Lightness46.86%
Dominant channelBlue
Hex per channelR 01 · G B3 · B EE

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Every value on this page was computed from “01b3ee” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.