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Colour

#018FB3

  • #018FB3
  • Cyan
  • Dark
  • Nearest: Steel blue

#018FB3 is a cyan with RGB values 1, 143, 179 and HSL 192°, 99%, 35%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#018FB3#018FB3
HEX#018FB3
RGBrgb(1, 143, 179)
RGB (0–1)0.0039, 0.5608, 0.702
RGB percentages0.4%, 56.1%, 70.2%
HSLhsl(192.1, 98.9%, 35.3%)
HSV / HSBhsv(192.1, 99.4%, 70.2%)
CMYK99.4%, 20.1%, 0%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer102,323
CSS custom property--colour: #018FB3;

Brightness & contrast

Relative luminance0.22906WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.58:1
Contrast with white3.76:1WCAG normal text: Fail
Contrast with black5.58:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#FE704C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7B8CB5no red cones; affects about 1% of men; ΔE 23.3 from the original
Deuteranopia#667DB3no green cones; the most common form, about 1% of men; ΔE 25.3 from the original
Tritanopia#009A9Bno blue cones; rare, and affects men and women equally; ΔE 22.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.76:1WCAG large text: AA
Contrast with black, large text5.58:1WCAG large text: AAA

Named colours

Steel blue · ΔE 15.7Cadetblue · ΔE 21.3Dark cyan · ΔE 22.3Teal · ΔE 22.7Deep skyblue · ΔE 23Light slate grey · ΔE 23.7
Nearest named CSS colourSteel blue (#4682B4)ΔE 15.71, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B32501
Analogous#01B37E, #0136B3
Triadic#B3018F, #8FB301
Split complementary#B30136, #B37E01
Tetradic#7E01B3, #B32501, #36B301

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#82E5FE
Lighter +30%#4FDBFE
Lighter +20%#1CD0FE
Lighter +10%#01B8E6
Darker −10%#016680
Darker −20%#003E4E
Darker −30%#00151B
Darker −40%#000000
More saturated +25%#0090B4
Less saturated −25%#18829C

Channel breakdown

R1
G143
B179
Red1 (0.4%)
Green143 (56.1%)
Blue179 (70.2%)
Hue192.13°
Saturation (HSL)98.89%
Lightness35.29%
Dominant channelBlue
Hex per channelR 01 · G 8F · B B3

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Every value on this page was computed from “018fb3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.