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Colour

#028DB4

  • #028DB4
  • Cyan
  • Dark
  • Nearest: Steel blue

#028DB4 is a cyan with RGB values 2, 141, 180 and HSL 193°, 98%, 36%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#028DB4#028DB4
HEX#028DB4
RGBrgb(2, 141, 180)
RGB (0–1)0.0078, 0.5529, 0.7059
RGB percentages0.8%, 55.3%, 70.6%
HSLhsl(193.1, 97.8%, 35.7%)
HSV / HSBhsv(193.1, 98.9%, 70.6%)
CMYK98.9%, 21.7%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer167,348
CSS custom property--colour: #028DB4;

Brightness & contrast

Relative luminance0.22358WCAG 2.x, 0 is black and 1 is white
Perceived brightness124 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.47:1
Contrast with white3.84:1WCAG normal text: Fail
Contrast with black5.47:1WCAG normal text: AA
Greyscale equivalent#727272
Inverted#FD724B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#788AB6no red cones; affects about 1% of men; ΔE 22.4 from the original
Deuteranopia#637CB4no green cones; the most common form, about 1% of men; ΔE 23.9 from the original
Tritanopia#00989Ano blue cones; rare, and affects men and women equally; ΔE 23.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.84:1WCAG large text: AA
Contrast with black, large text5.47:1WCAG large text: AAA

Named colours

Steel blue · ΔE 13.8Deep skyblue · ΔE 22.5Cadetblue · ΔE 23Light slate grey · ΔE 23.8Slate grey · ΔE 24.2Dark cyan · ΔE 24.3
Nearest named CSS colourSteel blue (#4682B4)ΔE 13.85, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B42902
Analogous#02B482, #0234B4
Triadic#B4028D, #8DB402
Split complementary#B40234, #B48202
Tetradic#8202B4, #B42902, #34B402

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#84E3FE
Lighter +30%#52D8FD
Lighter +20%#1FCCFD
Lighter +10%#03B5E6
Darker −10%#016582
Darker −20%#013E4F
Darker −30%#00161D
Darker −40%#000000
More saturated +25%#008EB6
Less saturated −25%#19809D

Channel breakdown

R2
G141
B180
Red2 (0.8%)
Green141 (55.3%)
Blue180 (70.6%)
Hue193.15°
Saturation (HSL)97.8%
Lightness35.69%
Dominant channelBlue
Hex per channelR 02 · G 8D · B B4

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Every value on this page was computed from “028db4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.