Nerdulator> put something in

Recognised as Colour

#258CDA

  • #258CDA
  • Blue
  • Dark
  • Nearest: Cornflower blue

#258CDA is a blue with RGB values 37, 140, 218 and HSL 206°, 71%, 50%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#258CDA#258CDA
HEX#258CDA
RGBrgb(37, 140, 218)
RGB (0–1)0.1451, 0.549, 0.8549
RGB percentages14.5%, 54.9%, 85.5%
HSLhsl(205.9, 71%, 50%)
HSV / HSBhsv(205.9, 83%, 85.5%)
CMYK83%, 35.8%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,460,890
CSS custom property--colour: #258CDA;

Brightness & contrast

Relative luminance0.24211WCAG 2.x, 0 is black and 1 is white
Perceived brightness131.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.84:1
Contrast with white3.59:1WCAG normal text: Fail
Contrast with black5.84:1WCAG normal text: AA
Greyscale equivalent#7C7C7C
Inverted#DA7325

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6790DDno red cones; affects about 1% of men; ΔE 10.4 from the original
Deuteranopia#4C80D9no green cones; the most common form, about 1% of men; ΔE 12.4 from the original
Tritanopia#009FA9no blue cones; rare, and affects men and women equally; ΔE 44.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.59:1WCAG large text: AA
Contrast with black, large text5.84:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11.9Steel blue · ΔE 16.4Dodgerblue · ΔE 19.3Deep skyblue · ΔE 23.9Light skyblue · ΔE 31.9Royal blue · ΔE 33.5
Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.85, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DA7325
Analogous#25DACD, #2532DA
Triadic#DA258C, #8CDA25
Split complementary#DA2532, #DACD25
Tetradic#CE25DA, #DA7325, #32DA25

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D3E8F8
Lighter +30%#A8D1F0
Lighter +20%#7CBAE9
Lighter +10%#51A3E1
Darker −10%#1E70AE
Darker −20%#165483
Darker −30%#0F3857
Darker −40%#071C2C
More saturated +25%#0590FA
Less saturated −25%#4588BA

Channel breakdown

R37
G140
B218
Red37 (14.5%)
Green140 (54.9%)
Blue218 (85.5%)
Hue205.86°
Saturation (HSL)70.98%
Lightness50%
Dominant channelBlue
Hex per channelR 25 · G 8C · B DA

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 “258cda” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.