Nerdulator> put something in

Recognised as Colour

#30589D

  • #30589D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#30589D is a blue with RGB values 48, 88, 157 and HSL 218°, 53%, 40%. It is a dark colour, so white text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#30589D#30589D
HEX#30589D
RGBrgb(48, 88, 157)
RGB (0–1)0.1882, 0.3451, 0.6157
RGB percentages18.8%, 34.5%, 61.6%
HSLhsl(218, 53.2%, 40.2%)
HSV / HSBhsv(218, 69.4%, 61.6%)
CMYK69.4%, 43.9%, 0%, 38.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,168,413
CSS custom property--colour: #30589D;

Brightness & contrast

Relative luminance0.10042WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.98:1
Contrast with white6.98:1WCAG normal text: AA
Contrast with black3.01:1WCAG normal text: Fail
Greyscale equivalent#545454
Inverted#CFA762

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#375FA0no red cones; affects about 1% of men; ΔE 4.1 from the original
Deuteranopia#24559Cno green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#006873no blue cones; rare, and affects men and women equally; ΔE 41.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.98:1WCAG large text: AAA
Contrast with black, large text3.01:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 17.8Steel blue · ΔE 22.2Cornflower blue · ΔE 25.2Royal blue · ΔE 30.4Dodgerblue · ΔE 30.5Slate blue · ΔE 31.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.8, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9D7530
Analogous#308E9D, #3F309D
Triadic#9D3058, #589D30
Split complementary#9D3F30, #8E9D30
Tetradic#9D308E, #9D7530, #309D3F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B2C5E7
Lighter +30%#8BA8DB
Lighter +20%#648BCF
Lighter +10%#3C6EC4
Darker −10%#244276
Darker −20%#182C4F
Darker −30%#0C1628
Darker −40%#000001
More saturated +25%#1651B7
Less saturated −25%#4A5F83

Channel breakdown

R48
G88
B157
Red48 (18.8%)
Green88 (34.5%)
Blue157 (61.6%)
Hue217.98°
Saturation (HSL)53.17%
Lightness40.2%
Dominant channelBlue
Hex per channelR 30 · G 58 · 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 “30589d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.