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Recognised as Colour

#289DA0

  • #289DA0
  • Cyan
  • Dark
  • Nearest: Dark cyan

#289DA0 is a cyan with RGB values 40, 157, 160 and HSL 182°, 60%, 39%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Dark cyan.

Colour values

#289DA0#289DA0
HEX#289DA0
RGBrgb(40, 157, 160)
RGB (0–1)0.1569, 0.6157, 0.6275
RGB percentages15.7%, 61.6%, 62.7%
HSLhsl(181.5, 60%, 39.2%)
HSV / HSBhsv(181.5, 75%, 62.7%)
CMYK75%, 1.9%, 0%, 37.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,661,792
CSS custom property--colour: #289DA0;

Brightness & contrast

Relative luminance0.27103WCAG 2.x, 0 is black and 1 is white
Perceived brightness133.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.42:1
Contrast with white3.27:1WCAG normal text: Fail
Contrast with black6.42:1WCAG normal text: AA
Greyscale equivalent#848484
Inverted#D7625F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9295A0no red cones; affects about 1% of men; ΔE 31.4 from the original
Deuteranopia#8189A1no green cones; the most common form, about 1% of men; ΔE 32.4 from the original
Tritanopia#00A39Eno blue cones; rare, and affects men and women equally; ΔE 7.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.27:1WCAG large text: AA
Contrast with black, large text6.42:1WCAG large text: AAA

Named colours

Dark cyan · ΔE 7.1Cadetblue · ΔE 10.9Teal · ΔE 11.1Light seagreen · ΔE 11.1Dark turquoise · ΔE 19.4Medium turquoise · ΔE 19.5
Nearest named CSS colourDark cyan (#008B8B)ΔE 7.12, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A02B28
Analogous#28A067, #2861A0
Triadic#A0289D, #9DA028
Split complementary#A02861, #A06728
Tetradic#6728A0, #A02B28, #61A028

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AAE8EA
Lighter +30%#81DDE0
Lighter +20%#59D2D5
Lighter +10%#32C5C9
Darker −10%#1E7577
Darker −20%#144D4E
Darker −30%#092526
Darker −40%#000000
More saturated +25%#0FB5B9
Less saturated −25%#418587

Channel breakdown

R40
G157
B160
Red40 (15.7%)
Green157 (61.6%)
Blue160 (62.7%)
Hue181.5°
Saturation (HSL)60%
Lightness39.22%
Dominant channelBlue
Hex per channelR 28 · G 9D · B A0

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Every value on this page was computed from “289da0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.