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Recognised as Colour

#1D6481

  • #1D6481
  • Cyan
  • Dark
  • Nearest: Steel blue

#1D6481 is a cyan with RGB values 29, 100, 129 and HSL 197°, 63%, 31%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#1D6481#1D6481
HEX#1D6481
RGBrgb(29, 100, 129)
RGB (0–1)0.1137, 0.3922, 0.5059
RGB percentages11.4%, 39.2%, 50.6%
HSLhsl(197.4, 63.3%, 31%)
HSV / HSBhsv(197.4, 77.5%, 50.6%)
CMYK77.5%, 22.5%, 0%, 49.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,926,273
CSS custom property--colour: #1D6481;

Brightness & contrast

Relative luminance0.10961WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.58:1
Contrast with white6.58:1WCAG normal text: AA
Contrast with black3.19:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#E29B7E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#556282no red cones; affects about 1% of men; ΔE 14.9 from the original
Deuteranopia#485981no green cones; the most common form, about 1% of men; ΔE 16.1 from the original
Tritanopia#006C6Eno blue cones; rare, and affects men and women equally; ΔE 19.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.58:1WCAG large text: AAA
Contrast with black, large text3.19:1WCAG large text: AA

Named colours

Steel blue · ΔE 17.7Slate grey · ΔE 20Dark slate grey · ΔE 20.4Light slate grey · ΔE 21.8Teal · ΔE 24.1Dim grey · ΔE 25.5
Nearest named CSS colourSteel blue (#4682B4)ΔE 17.74, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#813A1D
Analogous#1D816C, #1D3281
Triadic#811D64, #64811D
Split complementary#811D32, #816C1D
Tetradic#6C1D81, #813A1D, #32811D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#86C9E4
Lighter +30%#5DB6DA
Lighter +20%#33A3D1
Lighter +10%#2684AB
Darker −10%#144457
Darker −20%#0A232E
Darker −30%#010304
Darker −40%#000000
More saturated +25%#096C95
Less saturated −25%#315C6D

Channel breakdown

R29
G100
B129
Red29 (11.4%)
Green100 (39.2%)
Blue129 (50.6%)
Hue197.4°
Saturation (HSL)63.29%
Lightness30.98%
Dominant channelBlue
Hex per channelR 1D · G 64 · B 81

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Every value on this page was computed from “1d6481” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.