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Recognised as Colour

#0255B0

  • #0255B0
  • Blue
  • Dark
  • Nearest: Dark slateblue

#0255B0 is a blue with RGB values 2, 85, 176 and HSL 211°, 98%, 35%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#0255B0#0255B0
HEX#0255B0
RGBrgb(2, 85, 176)
RGB (0–1)0.0078, 0.3333, 0.6902
RGB percentages0.8%, 33.3%, 69%
HSLhsl(211.4, 97.8%, 34.9%)
HSV / HSBhsv(211.4, 98.9%, 69%)
CMYK98.9%, 51.7%, 0%, 31%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer153,008
CSS custom property--colour: #0255B0;

Brightness & contrast

Relative luminance0.09644WCAG 2.x, 0 is black and 1 is white
Perceived brightness88.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.17:1
Contrast with white7.17:1WCAG normal text: AAA
Contrast with black2.93:1WCAG normal text: Fail
Greyscale equivalent#4A4A4A
Inverted#FDAA4F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#145FB3no red cones; affects about 1% of men; ΔE 6.7 from the original
Deuteranopia#0051AEno green cones; the most common form, about 1% of men; ΔE 2.4 from the original
Tritanopia#006C7Ano blue cones; rare, and affects men and women equally; ΔE 53.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.17:1WCAG large text: AAA
Contrast with black, large text2.93:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 17.5Royal blue · ΔE 18.9Slate blue · ΔE 22.7Dodgerblue · ΔE 24.5Cornflower blue · ΔE 25.9Midnight blue · ΔE 27.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.54, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B05D02
Analogous#02ACB0, #0602B0
Triadic#B00255, #55B002
Split complementary#B00602, #ACB002
Tetradic#B002AC, #B05D02, #02B006

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#80BCFE
Lighter +30%#4EA1FD
Lighter +20%#1C87FC
Lighter +10%#036DE2
Darker −10%#013D7E
Darker −20%#01244B
Darker −30%#000C19
Darker −40%#000000
More saturated +25%#0055B2
Less saturated −25%#18569A

Channel breakdown

R2
G85
B176
Red2 (0.8%)
Green85 (33.3%)
Blue176 (69%)
Hue211.38°
Saturation (HSL)97.75%
Lightness34.9%
Dominant channelBlue
Hex per channelR 02 · G 55 · B B0

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Every value on this page was computed from “0255b0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.