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Colour

#1598FF

  • #1598FF
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1598FF is a blue with RGB values 21, 152, 255 and HSL 206°, 100%, 54%. It is a dark colour, so black text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1598FF#1598FF
HEX#1598FF
RGBrgb(21, 152, 255)
RGB (0–1)0.0824, 0.5961, 1
RGB percentages8.2%, 59.6%, 100%
HSLhsl(206.4, 100%, 54.1%)
HSV / HSBhsv(206.4, 91.8%, 100%)
CMYK91.8%, 40.4%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,415,423
CSS custom property--colour: #1598FF;

Brightness & contrast

Relative luminance0.29836WCAG 2.x, 0 is black and 1 is white
Perceived brightness145.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.97:1
Contrast with white3.01:1WCAG normal text: Fail
Contrast with black6.97:1WCAG normal text: AA
Greyscale equivalent#848484
Inverted#EA6700

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#649FFFno red cones; affects about 1% of men; ΔE 8.9 from the original
Deuteranopia#3C8CFDno green cones; the most common form, about 1% of men; ΔE 10.2 from the original
Tritanopia#00B1BFno blue cones; rare, and affects men and women equally; ΔE 56.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.01:1WCAG large text: AA
Contrast with black, large text6.97:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 6.6Cornflower blue · ΔE 11.6Royal blue · ΔE 26Deep skyblue · ΔE 30.5Steel blue · ΔE 30.5Medium purple · ΔE 34.2
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 6.58, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF7C15
Analogous#15FFF1, #1523FF
Triadic#FF1598, #98FF15
Split complementary#FF1523, #FFF115
Tetradic#F115FF, #FF7C15, #23FF15

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E1F2FF
Lighter +30%#AEDBFF
Lighter +20%#7BC5FF
Lighter +10%#48AEFF
Darker −10%#007EE1
Darker −20%#0061AE
Darker −30%#00457B
Darker −40%#002848
More saturated +25%#1598FF
Less saturated −25%#3295E2

Channel breakdown

R21
G152
B255
Red21 (8.2%)
Green152 (59.6%)
Blue255 (100%)
Hue206.41°
Saturation (HSL)100%
Lightness54.12%
Dominant channelBlue
Hex per channelR 15 · G 98 · B FF

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Every value on this page was computed from “1598ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.