Nerdulator> put something in

Recognised as Colour

#1B59BF

  • #1B59BF
  • Blue
  • Dark
  • Nearest: Royal blue

#1B59BF is a blue with RGB values 27, 89, 191 and HSL 217°, 75%, 43%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#1B59BF#1B59BF
HEX#1B59BF
RGBrgb(27, 89, 191)
RGB (0–1)0.1059, 0.349, 0.749
RGB percentages10.6%, 34.9%, 74.9%
HSLhsl(217.3, 75.2%, 42.7%)
HSV / HSBhsv(217.3, 85.9%, 74.9%)
CMYK85.9%, 53.4%, 0%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,792,447
CSS custom property--colour: #1B59BF;

Brightness & contrast

Relative luminance0.11139WCAG 2.x, 0 is black and 1 is white
Perceived brightness95 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.51:1
Contrast with white6.51:1WCAG normal text: AA
Contrast with black3.23:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#E4A640

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0065C3no red cones; affects about 1% of men; ΔE 8.8 from the original
Deuteranopia#0057BDno green cones; the most common form, about 1% of men; ΔE 1.5 from the original
Tritanopia#007283no blue cones; rare, and affects men and women equally; ΔE 58.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.51:1WCAG large text: AAA
Contrast with black, large text3.23:1WCAG large text: AA

Named colours

Royal blue · ΔE 12.1Slate blue · ΔE 17.2Dark slateblue · ΔE 20Dodgerblue · ΔE 22.4Medium purple · ΔE 24.4Medium slateblue · ΔE 25.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 12.14, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BF811B
Analogous#1BABBF, #2F1BBF
Triadic#BF1B59, #59BF1B
Split complementary#BF2F1B, #ABBF1B
Tetradic#BF1BAB, #BF811B, #1BBF2F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B2CBF4
Lighter +30%#85ADEE
Lighter +20%#598FE7
Lighter +10%#2C70E1
Darker −10%#154492
Darker −20%#0E2F66
Darker −30%#081B39
Darker −40%#02060C
More saturated +25%#0052DA
Less saturated −25%#3660A4

Channel breakdown

R27
G89
B191
Red27 (10.6%)
Green89 (34.9%)
Blue191 (74.9%)
Hue217.32°
Saturation (HSL)75.23%
Lightness42.75%
Dominant channelBlue
Hex per channelR 1B · G 59 · B BF

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “1b59bf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.