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Colour

#1237ED

  • #1237ED
  • Blue
  • Dark
  • Nearest: Medium blue

#1237ED is a blue with RGB values 18, 55, 237 and HSL 230°, 86%, 50%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1237ED#1237ED
HEX#1237ED
RGBrgb(18, 55, 237)
RGB (0–1)0.0706, 0.2157, 0.9294
RGB percentages7.1%, 21.6%, 92.9%
HSLhsl(229.9, 85.9%, 50%)
HSV / HSBhsv(229.9, 92.4%, 92.9%)
CMYK92.4%, 76.8%, 0%, 7.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,193,965
CSS custom property--colour: #1237ED;

Brightness & contrast

Relative luminance0.08975WCAG 2.x, 0 is black and 1 is white
Perceived brightness91 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.51:1
Contrast with white7.51:1WCAG normal text: AAA
Contrast with black2.8:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#EDC812

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005FF2no red cones; affects about 1% of men; ΔE 27.3 from the original
Deuteranopia#0049EAno green cones; the most common form, about 1% of men; ΔE 14 from the original
Tritanopia#006F91no blue cones; rare, and affects men and women equally; ΔE 97 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.51:1WCAG large text: AAA
Contrast with black, large text2.8:1WCAG large text: Fail

Named colours

Medium blue · ΔE 14.8Blue violet · ΔE 21.9Blue · ΔE 27.5Dark violet · ΔE 28.8Dark blue · ΔE 32Dark orchid · ΔE 33.3
Nearest named CSS colourMedium blue (#0000CD)ΔE 14.76, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EDC812
Analogous#12A5ED, #5A12ED
Triadic#ED1237, #37ED12
Split complementary#ED5B12, #A4ED12
Tetradic#ED12A5, #EDC812, #12ED5B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D0D7FB
Lighter +30%#A0AFF8
Lighter +20%#7187F4
Lighter +10%#415FF1
Darker −10%#0E2CBE
Darker −20%#0B218E
Darker −30%#07165F
Darker −40%#040B2F
More saturated +25%#002BFF
Less saturated −25%#324CCD

Channel breakdown

R18
G55
B237
Red18 (7.1%)
Green55 (21.6%)
Blue237 (92.9%)
Hue229.86°
Saturation (HSL)85.88%
Lightness50%
Dominant channelBlue
Hex per channelR 12 · G 37 · B ED

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Every value on this page was computed from “1237ed” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.