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Recognised as Colour

#28B7FF

  • #28B7FF
  • Blue
  • Dark
  • Nearest: Deep skyblue

#28B7FF is a blue with RGB values 40, 183, 255 and HSL 200°, 100%, 58%. It is a dark colour, so black text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#28B7FF#28B7FF
HEX#28B7FF
RGBrgb(40, 183, 255)
RGB (0–1)0.1569, 0.7176, 1
RGB percentages15.7%, 71.8%, 100%
HSLhsl(200.1, 100%, 57.8%)
HSV / HSBhsv(200.1, 84.3%, 100%)
CMYK84.3%, 28.2%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,668,543
CSS custom property--colour: #28B7FF;

Brightness & contrast

Relative luminance0.41538WCAG 2.x, 0 is black and 1 is white
Perceived brightness166 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.31:1
Contrast with white2.26:1WCAG normal text: Fail
Contrast with black9.31:1WCAG normal text: AAA
Greyscale equivalent#9E9E9E
Inverted#D74800

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#94B7FFno red cones; affects about 1% of men; ΔE 19.4 from the original
Deuteranopia#78A4FEno green cones; the most common form, about 1% of men; ΔE 22.3 from the original
Tritanopia#00C9D0no blue cones; rare, and affects men and women equally; ΔE 40.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.26:1WCAG large text: Fail
Contrast with black, large text9.31:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 6.9Light skyblue · ΔE 19.5Cornflower blue · ΔE 23.1Steel blue · ΔE 23.8Sky blue · ΔE 26Dodgerblue · ΔE 30.2
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 6.94, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF7028
Analogous#28FFDB, #284CFF
Triadic#FF28B7, #B7FF28
Split complementary#FF284C, #FFDB28
Tetradic#DB28FF, #FF7028, #4CFF28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F4FBFF
Lighter +30%#C1EAFF
Lighter +20%#8ED9FF
Lighter +10%#5BC8FF
Darker −10%#00A2F4
Darker −20%#0080C1
Darker −30%#005E8E
Darker −40%#003D5B
More saturated +25%#28B7FF
Less saturated −25%#43AEE4

Channel breakdown

R40
G183
B255
Red40 (15.7%)
Green183 (71.8%)
Blue255 (100%)
Hue200.09°
Saturation (HSL)100%
Lightness57.84%
Dominant channelBlue
Hex per channelR 28 · G B7 · B FF

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Every value on this page was computed from “28b7ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.