Nerdulator> put something in

Recognised as Colour

#63749D

  • #63749D
  • Blue
  • Dark
  • Nearest: Steel blue

#63749D is a blue with RGB values 99, 116, 157 and HSL 222°, 23%, 50%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#63749D#63749D
HEX#63749D
RGBrgb(99, 116, 157)
RGB (0–1)0.3882, 0.4549, 0.6157
RGB percentages38.8%, 45.5%, 61.6%
HSLhsl(222.4, 22.8%, 50.2%)
HSV / HSBhsv(222.4, 36.9%, 61.6%)
CMYK36.9%, 26.1%, 0%, 38.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,517,917
CSS custom property--colour: #63749D;

Brightness & contrast

Relative luminance0.17578WCAG 2.x, 0 is black and 1 is white
Perceived brightness116.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.65:1
Contrast with white4.65:1WCAG normal text: AA
Contrast with black4.52:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#9C8B62

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#66779Fno red cones; affects about 1% of men; ΔE 1.3 from the original
Deuteranopia#61729Cno green cones; the most common form, about 1% of men; ΔE 1 from the original
Tritanopia#517C82no blue cones; rare, and affects men and women equally; ΔE 23.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.65:1WCAG large text: AAA
Contrast with black, large text4.52:1WCAG large text: AAA

Named colours

Steel blue · ΔE 12.1Slate grey · ΔE 15.5Light slate grey · ΔE 16.1Dim grey · ΔE 24.9Gray · ΔE 24.9Cornflower blue · ΔE 28.8
Nearest named CSS colourSteel blue (#4682B4)ΔE 12.09, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9D8C63
Analogous#63919D, #6F639D
Triadic#9D6374, #749D63
Split complementary#9D6F63, #919D63
Tetradic#9D6391, #9D8C63, #639D6F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E0E4EC
Lighter +30%#C1C8D8
Lighter +20%#A2ACC4
Lighter +10%#8290B1
Darker −10%#4F5D7E
Darker −20%#3B465F
Darker −30%#282F3F
Darker −40%#141820
More saturated +25%#4367BD
Less saturated −25%#808080

Channel breakdown

R99
G116
B157
Red99 (38.8%)
Green116 (45.5%)
Blue157 (61.6%)
Hue222.41°
Saturation (HSL)22.83%
Lightness50.2%
Dominant channelBlue
Hex per channelR 63 · G 74 · B 9D

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 “63749d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.