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Colour

#2500B3

  • #2500B3
  • Blue
  • Dark
  • Nearest: Medium blue

#2500B3 is a blue with RGB values 37, 0, 179 and HSL 252°, 100%, 35%. It is a dark colour, so white text on it reaches 12.1:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#2500B3#2500B3
HEX#2500B3
RGBrgb(37, 0, 179)
RGB (0–1)0.1451, 0, 0.702
RGB percentages14.5%, 0%, 70.2%
HSLhsl(252.4, 100%, 35.1%)
HSV / HSBhsv(252.4, 100%, 70.2%)
CMYK79.3%, 100%, 0%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,425,011
CSS custom property--colour: #2500B3;

Brightness & contrast

Relative luminance0.03648WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.14:1
Contrast with white12.14:1WCAG normal text: AAA
Contrast with black1.73:1WCAG normal text: Fail
Greyscale equivalent#151515
Inverted#DAFF4C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003DB7no red cones; affects about 1% of men; ΔE 31 from the original
Deuteranopia#002DB0no green cones; the most common form, about 1% of men; ΔE 21.9 from the original
Tritanopia#004868no blue cones; rare, and affects men and women equally; ΔE 88.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.14:1WCAG large text: AAA
Contrast with black, large text1.73:1WCAG large text: Fail

Named colours

Medium blue · ΔE 13Dark blue · ΔE 17.6Blue violet · ΔE 22.2Navy · ΔE 22.8Dark violet · ΔE 24.9Indigo · ΔE 28.7
Nearest named CSS colourMedium blue (#0000CD)ΔE 12.96, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8EB300
Analogous#0034B3, #7F00B3
Triadic#B32500, #00B325
Split complementary#B37F00, #34B300
Tetradic#B30034, #8EB300, #00B37F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9A80FF
Lighter +30%#724DFF
Lighter +20%#491AFF
Lighter +10%#3000E6
Darker −10%#1A0080
Darker −20%#10004D
Darker −30%#05001A
Darker −40%#000000
More saturated +25%#2500B3
Less saturated −25%#32169D

Channel breakdown

R37
G0
B179
Red37 (14.5%)
Green0 (0%)
Blue179 (70.2%)
Hue252.4°
Saturation (HSL)100%
Lightness35.1%
Dominant channelBlue
Hex per channelR 25 · G 00 · B B3

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Every value on this page was computed from “2500b3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.