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Recognised as Colour

#01658F

  • #01658F
  • Cyan
  • Dark
  • Nearest: Steel blue

#01658F is a cyan with RGB values 1, 101, 143 and HSL 198°, 99%, 28%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#01658F#01658F
HEX#01658F
RGBrgb(1, 101, 143)
RGB (0–1)0.0039, 0.3961, 0.5608
RGB percentages0.4%, 39.6%, 56.1%
HSLhsl(197.7, 98.6%, 28.2%)
HSV / HSBhsv(197.7, 99.3%, 56.1%)
CMYK99.3%, 29.4%, 0%, 43.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer91,535
CSS custom property--colour: #01658F;

Brightness & contrast

Relative luminance0.11297WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.44:1
Contrast with white6.44:1WCAG normal text: AA
Contrast with black3.26:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#FE9A70

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#506591no red cones; affects about 1% of men; ΔE 13.8 from the original
Deuteranopia#3F598Eno green cones; the most common form, about 1% of men; ΔE 15.6 from the original
Tritanopia#007074no blue cones; rare, and affects men and women equally; ΔE 25.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.44:1WCAG large text: AAA
Contrast with black, large text3.26:1WCAG large text: AA

Named colours

Steel blue · ΔE 13.4Slate grey · ΔE 24.1Light slate grey · ΔE 25.5Dark slate grey · ΔE 27.9Teal · ΔE 30.6Dim grey · ΔE 31.5
Nearest named CSS colourSteel blue (#4682B4)ΔE 13.4, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8F2B01
Analogous#018F72, #011E8F
Triadic#8F0165, #658F01
Split complementary#8F011E, #8F7201
Tetradic#72018F, #8F2B01, #1E8F01

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5ECFFE
Lighter +30%#2BBFFE
Lighter +20%#02ADF4
Lighter +10%#0189C2
Darker −10%#01415C
Darker −20%#001D2A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#006590
Less saturated −25%#135E7D

Channel breakdown

R1
G101
B143
Red1 (0.4%)
Green101 (39.6%)
Blue143 (56.1%)
Hue197.75°
Saturation (HSL)98.61%
Lightness28.24%
Dominant channelBlue
Hex per channelR 01 · G 65 · B 8F

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Every value on this page was computed from “01658f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.