Recognised as Colour

#D40317

#D40317
Red
Dark
Nearest: Crimson

#D40317 is a red with RGB values 212, 3, 23 and HSL 354°, 97%, 42%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#D40317#D40317

HEX#D40317

RGBrgb(212, 3, 23)

RGB (0–1)0.8314, 0.0118, 0.0902

RGB percentages83.1%, 1.2%, 9%

HSLhsl(354.3, 97.2%, 42.2%)

HSV / HSBhsv(354.3, 98.6%, 83.1%)

CMYK0%, 98.6%, 89.2%, 16.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,894,423

CSS custom property--colour: #D40317;

Brightness & contrast

Relative luminance0.14124WCAG 2.x, 0 is black and 1 is white

Perceived brightness116.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.49:1

Contrast with white5.49:1WCAG normal text: AA

Contrast with black3.82:1WCAG normal text: Fail

Greyscale equivalent#313131

Inverted#2BFCE8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#594E13no red cones; affects about 1% of men; ΔE 75 from the original

Deuteranopia#877702no green cones; the most common form, about 1% of men; ΔE 74.6 from the original

Tritanopia#EA0013no blue cones; rare, and affects men and women equally; ΔE 9.9 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text5.49:1WCAG large text: AAA

Contrast with black, large text3.82:1WCAG large text: AA

Named colours

Crimson · ΔE 17.2 Firebrick · ΔE 19.6 Red · ΔE 21.5 Tomato · ΔE 21.7 Orange red · ΔE 22.7 Dark red · ΔE 26.5

Nearest named CSS colourCrimson (#DC143C)ΔE 17.2, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#03D4C0

Analogous#D4037F, #D45803

Triadic#17D403, #0317D4

Split complementary#03D457, #037FD4

Tetradic#7FD403, #03D4C0, #5803D4

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FEA5AE

Lighter +30%#FD7380

Lighter +20%#FC4153

Lighter +10%#FC0E25

Darker −10%#A20212

Darker −20%#6F020C

Darker −30%#3D0107

Darker −40%#0B0001

More saturated +25%#D70015

Less saturated −25%#B91E2D

Channel breakdown

R212

B23

Red212 (83.1%)

Green3 (1.2%)

Blue23 (9%)

Hue354.26°

Saturation (HSL)97.21%

Lightness42.16%

Dominant channelRed

Hex per channelR D4 · G 03 · B 17

Keep nerding

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

#D40317

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

Nerdulate something else